专题5 定语从句（练习）-2027年河南省（对口招生考试）《英语一轮讲练测》（原卷版+解析版）

**基本信息** 聚焦定语从句核心考点，通过分层训练构建从基础到应用的完整进阶路径，助力提升语言理解与分析推断能力。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |系列考点夯实练|15题|考查关系代词（who/which/that/whose等）基础应用|从关系代词概念切入，通过挖空式练习筑牢语法基础| |核心突破提升练|25题|涵盖关系副词（when/where/why）及介词+关系代词辨析|在基础上拓展至复杂结构，形成"代词-副词-介词搭配"的逻辑链条| |真题溯源过关练|5题（2018-2023年真题）|针对高频考点的真实情境应用|通过真题验证知识迁移能力，强化应试思维品质|

编写说明：2027年河南省（对口招生）《英语学科一轮讲练测》内含复习讲义、复习课件、专项训练、综合训练，在编写中融入支架式教学理念，紧扣教材，将知识拆解整合为体系化专题清单，以挖空式讲解搭配知识再现型练习筑牢基础，再通过分层专项训练、综合进阶训练实现知识巩固与能力提升。针对性强，实操性好，为一轮复习搭建从知识梳理到能力突破的完整进阶路径，高效赋能备考提分。 本专题是2027版河南省（对口招生考试）《英语学科一轮讲练测》的第5个专题，内容为定语从句。 2027版河南省（对口招生考试） 《一轮讲练测》专项训练 专题05 定语从句 目录 01 系列考点夯实练 02 核心突破提升练 03 真题溯源过关练 【考点1 关系代词引导的定语从句】 1．—Have you got ready for the soccer game? —Yes, I’ve done everything _________ I can do to win the game. A．who B．that C．which D．what 2．The novel ________ I borrowed from the library is very interesting. A．who B．which C．whose D．where 3．She is the little girl _________ I met on the way to the park. A．who B．what C．which D．whose 4．The teacher ________ we respect very much is giving a lecture. A．where B．whom C．when D．which 5．Do you know the girl ________ mother is an English teacher in your school? A．that B．where C．whose D．in which 6．A wise man seldom talks about such things ________ he doesn’t understand. A．as B．who C．whose D．at which 7．Can you remember the year _______ you first met your best friend? A．that B．where C．when D．which 8．This is the classroom ________ my classmates and I study every day. A．what B．where C．that D．which 9．He refused to let us know the reason ________ he didn’t go to the party. A．why B．which C．how D．that 10．The engineer, ________ gave us a speech yesterday, came from India. A．that B．who C．whom D．whose 11．She brought with her three friends, none of _________ I had ever met before. A．whom B．who C．which D．them 12．The dog, ________ legs were hurt, was taken to the animal hospital. A．who B．which C．whose D．that 13．My friend showed me round the town, ________ was very kind of him. A．which B．that C．where D．it 14．________, Mo Yan is a great writer and he has won the Nobel Prize. A．After all B．As is known to all C．Not at all D．As for 15．He lives in a small house, ________ stands a tall tree. A．in front of it B．in front of which C．in front of that D．in front of where 【考点2 关系副词、介词+关系代词引导的定语从句】 16．I still remember the day ______ I first went to the music hall. A．that B．where C．which D．when 17．Do you know the reason ________ he was late for school? A．which B．who C．why D．whose 18．I don’t know the hero ________ they are talking about, but I do know the city ________ he saved a lot of people. A．who; which B．which; where C．who; in which 19．The book ________ I paid $20 is very useful. A．for which B．which C．that D．to which 20．—Do you like the place________ the weather is always warm? —No. A．where B．what C．when D．who 21．The house, ________ was damaged, has now been repaired. A．which the roof B．the roof of which C．of which roof D．that whose roof 22．These old pictures bring to their mind the college days ________ they spent together, ________ life was hard but happy. A．when; whose B．which; whose C．which; when D．when; which 23．A fast-food restaurant is the place, ________ you can eat quickly. A．which B．where C．there D．what 24．The result of the experiment was very good, ________ we hadn’t expected. A．when B．that C．which D．what 25．_______________ is known to everybody, the moon travels round the earth once every month. A．It B．As C．That D．What 26．He is my son, ________ a better son does not exist. A．but B．than who C．against whom D．than whom 27．My hometown, ________ is a small city, has changed a lot since 2010, ________ I left for college. A．which; when B．that; which C．where; that D．who; when 28．They will never forget the day ________ they climbed to the Mount. Tai. A．which B．that C．when D．in which 29．This is a film ______Spielberg used real actors instead of stunt men. A．which B．whose C．in which D．of which 30．We are sending you our latest catalogue of the table cloths ________ you are interested. A．that B．which C．of which D．in which 31．That’s the day ________ I’ll never forget. A．in which B．on which C．which D．when 32．This is the room in _________ Jason lived last summer. A．where B．which C．when D．who 33．She had completed the work all by herself, ________surprised all of us. A．it B．she C．that D．which 34．The company ________ his wife works is in the center of Shanghai. A．who B．that C．which D．where 35．Is this the factory ________ you visited the other day? A．the one B．that C．where D．when 36．That was the only story book ________ John had read. A．that B．what C．where D．when 37．The house, ________ I bought last year, has a lovely garden. A．that B．which C．where D．in which 38．This is the new bike ________ I bought yesterday. A．that B．where C．when D．how 39．This is the most difficult problem ________ I have ever met. A．which B．where C．that D．why 40．I still remember the day ________ we spent together in the countryside. A．where B．which C．when D．on which 41.（2023年河南省对口招生考试第27题） This is the person ______ Mr. Martin is looking for. A. whom B. which C. what D. where 42.（2022年河南省对口招生考试第30题） This is the room in_______Jason lived last summer. A. where B. which C. when D. who 43.（2021年河南省对口招生考试第30题） Do you know Tony_____mother is my English teacher? A. who B. whom C. whose D. that 44.（2020年河南省对口招生考试第30题） This is the place ______we first met. A. what B. which C. when D. where 45.（2018年河南省对口招生考试第30题） I’ll never forget the day ____ we spent together. A. which B. on which C. in which D. when 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $ 编写说明：2027年河南省（对口招生）《英语学科一轮讲练测》内含复习讲义、复习课件、专项训练、综合训练，在编写中融入支架式教学理念，紧扣教材，将知识拆解整合为体系化专题清单，以挖空式讲解搭配知识再现型练习筑牢基础，再通过分层专项训练、综合进阶训练实现知识巩固与能力提升。针对性强，实操性好，为一轮复习搭建从知识梳理到能力突破的完整进阶路径，高效赋能备考提分。 本专题是2027版河南省（对口招生考试）《英语学科一轮讲练测》的第5个专题，内容为定语从句。 2027版河南省（对口招生考试） 《一轮讲练测》专项训练 专题05 定语从句 目录 01 系列考点夯实练 02 核心突破提升练 03 真题溯源过关练 【考点1 关系代词引导的定语从句】 1．—Have you got ready for the soccer game? —Yes, I’ve done everything _________ I can do to win the game. A．who B．that C．which D．what 【答案】B 【详解】考查定语从句。句意：—你准备好参加足球比赛了吗？—是的，我已经尽一切努力去赢得比赛。分析句子结构可知，“... I can do”为定语从句，先行词是“everything”，在从句中作宾语，不定代词作先行词时，关系代词只能用“that”，不能用“which”，故用that引导定语从句。故选B。 2．The novel ________ I borrowed from the library is very interesting. A．who B．which C．whose D．where 【答案】B 【详解】考查定语从句。句意：我从图书馆借的那本小说很有趣。分析句子成分可知，“... I borrowed from the library”是一个定语从句，先行词The novel是物，且关系词在定语从句中作borrowed的宾语，因此需用关系代词which（或 that）引导定语从句。故选B。 3．She is the little girl _________ I met on the way to the park. A．who B．what C．which D．whose 【答案】A 【详解】考查定语从句。句意：她是我在去公园的路上遇到的小女孩。A. who谁，引导定语从句，指代人，在从句中作主宾表；B. what什么，不能引导定语从句；C. which那个，引导定语从句作主宾表，指代物；D. whose谁的，引导定语从句作定语。分析句子结构可知，“... I met on the way to the park.”是定语从句，先行词是girl，指人，在从句中作宾语，故用who引导定语从句。故选A。 4．The teacher ________ we respect very much is giving a lecture. A．where B．whom C．when D．which 【答案】B 【详解】考查定语从句关系词。句意：我们非常尊敬的那位老师正在讲课。分析句子成分可知，“… we respect very much”是一个定语从句，先行词是the teacher指人，关系词在定语从句中充当respect的宾语，此时可以用关系代词whom引导。故选B。 5．Do you know the girl ________ mother is an English teacher in your school? A．that B．where C．whose D．in which 【答案】C 【详解】考查定语从句。句意：你认识那个妈妈在你学校是一名英语老师的女孩吗？分析句子可知“... mother is an English teacher in your school”为定语从句，先行词“the girl”与“mother”是所属关系，故用whose作定语引导定语从句。故选C。 6．A wise man seldom talks about such things ________ he doesn’t understand. A．as B．who C．whose D．at which 【答案】A 【详解】考查定从关系词。句意：聪明人很少谈论他不理解的事情。分析句子结构可知，空处引导限定性定语从句修饰先行词things，指物，关系词在从句中作宾语。在限制性定语从句中，先行词前面有“the same、such”修饰时，用as引导。根据“such things”可知，此处用as。故选A。 7．Can you remember the year _______ you first met your best friend? A．that B．where C．when D．which 【答案】C 【详解】考查定语从句。句意：你能记得你第一次见到你最好的朋友是哪一年吗？根据句子结构，空处引导定语从句，先行词“the year”在从句中作时间状语，因此要用关系副词“when”，相当于“in which”。故选C。 8．This is the classroom ________ my classmates and I study every day. A．what B．where C．that D．which 【答案】B 【详解】考查where引导限制性定语从句。句意：这个是我的同学和我每天学习的教室。分析句子可知，空后句子作定语，是限制性定语从句，先行词是the classroom是地点，且从句部分成分完整，应使用where指代地点。故选B。 9．He refused to let us know the reason ________ he didn’t go to the party. A．why B．which C．how D．that 【答案】A 【详解】考查定语从句关系词。句意：他拒绝让我们知道他没去参加派对的原因。本句为定语从句，先行词是“the reason”，在定语从句“he didn’t go to the party”中作原因状语，故用why引导从句。故选A。 10．The engineer, ________ gave us a speech yesterday, came from India. A．that B．who C．whom D．whose 【答案】B 【详解】考查定从关系词。句意：昨天给我们做演讲的工程师来自印度。分析句子结构及选项可知，空处引导非限定性定语从句修饰先行词“engineer”，指的是人物，关系词在从句中作主语，所以用关系代词who。故选B。 11．She brought with her three friends, none of _________ I had ever met before. A．whom B．who C．which D．them 【答案】A 【详解】考查定从关系词。句意：她带来了三个朋友，我以前一个都没见过。“none of … I had ever met before”是一个非限制性定语从句，先行词是“three friends”，指人，介词of后面需要接宾格形式的关系代词，whom是who的宾格形式，符合语法要求。故选A。 12．The dog, ________ legs were hurt, was taken to the animal hospital. A．who B．which C．whose D．that 【答案】C 【详解】考查定从关系词。句意：那只腿受伤的狗被送到了动物医院。分析句子结构可知，空处引导非限定性定语从句修饰先行词dog，“The dog”与从句中的“legs”为所属关系，即狗的腿，应该用关系代词whose作定语来引导定语从句。故选C。 13．My friend showed me round the town, ________ was very kind of him. A．which B．that C．where D．it 【答案】A 【详解】考查定语从句。句意：我的朋友带我参观了城镇，他真是太好了。分析句子可知，空处需要一个词来指代前面整个句子，此处可以用which来引导非限制性定语从句，并且在从句中作主语。故选A。 14．________, Mo Yan is a great writer and he has won the Nobel Prize. A．After all B．As is known to all C．Not at all D．As for 【答案】B 【详解】考查短语辨析及定语从句。句意：众所周知，莫言是一位伟大的作家，他获得了诺贝尔奖。A. After all毕竟；B. As is known to all众所周知；C. Not at all不用谢；D. As for至于，就……而言。根据“Mo Yan is a great writer and he has won the Nobel Prize.”可知，“莫言是一位伟大的作家，他获得了诺贝尔奖”是众所周知的事实，“As is known to all”（意为“正如大家所知”）符合要求，这是关系代词As引导的非限制性定语从句，先行词是后面一整个句子（表常识性或公认的事实）。故选B。 15．He lives in a small house, ________ stands a tall tree. A．in front of it B．in front of which C．in front of that D．in front of where 【答案】B 【详解】考查定语从句。句意：他住在一座小房子前面有一棵大树的小房子里。in front of在……前面，分析句子结构可知，空处引导非限制性定语从句，先行词为house，表示地点，空处在从句中作地点状语，可用where或介词+关系代词which引导。故选B。 【考点2 关系副词、介词+关系代词引导的定语从句】 16．I still remember the day ______ I first went to the music hall. A．that B．where C．which D．when 【答案】D 【详解】考查限制性定语从句。句意：我仍然记得我第一次去音乐厅的那一天。分析句子可知，空格处引导定语从句，修饰先行词“the day”，先行词指时间，且引导词在从句中作状语，关系副词when符合语境。故选D。 17．Do you know the reason ________ he was late for school? A．which B．who C．why D．whose 【答案】C 【详解】考查定从关系词。句意：你知道他上学迟到的原因吗？分析句子结构可知，空处引导定语从句“he was late for school”，修饰先行词the reason，关系词在从句中作原因状语，因此用关系副词why引导。故选C。 18．I don’t know the hero ________ they are talking about, but I do know the city ________ he saved a lot of people. A．who; which B．which; where C．who; in which 【答案】C 【详解】句意：我不知道他们谈论的英雄是谁，但我知道他救了很多人的那个城市。 考查定语从句。先行词hero是指人，在从句作宾语，应用关系词that或who，排除B选项。第二空先行词the city在从句中作地点状语，用介词in+which作关系词，故选C。 19．The book ________ I paid $20 is very useful. A．for which B．which C．that D．to which 【答案】A 【详解】考查定语从句。句意：我花了20美元买的那本书很有用。分析句子可知，“... I paid $20”是定语从句，pay for sth.是固定搭配，意为“为某物付款”，介词for提前与关系代词连用，且先行词book是物，在从句中作宾语，因此要用for which引导定语从句。故选A。 20．—Do you like the place________ the weather is always warm? —No. A．where B．what C．when D．who 【答案】A 【详解】句意：——你喜欢天气总是暖和的地方吗？——不。 考查定语从句。where引导定语从句，先行词是地点，在定语从句中作地点状语；what引导宾语从句；when引导定语从句，先行词是时间，在定语从句中作时间状语；who引导定语从句，先行词是人，在定语从句中作主语或宾语，根据the place和后面的句子the weather is always warm可知，是定语从句，排除B，the place是地点且在定语从句中作地点状语，所以用where，故选A。 21．The house, ________ was damaged, has now been repaired. A．which the roof B．the roof of which C．of which roof D．that whose roof 【答案】B 【详解】考查非限制性定语从句。句意：这所屋顶被损坏的房子，现已修好。分析句子可知，在这里要填入一个引导关系从句的词组，用于描述“the house”的细节。先行词为“the house”，“the roof”与先行词是从属关系，从属关系的词of，先行词是物，所以用which代指先行词。故选B。 22．These old pictures bring to their mind the college days ________ they spent together, ________ life was hard but happy. A．when; whose B．which; whose C．which; when D．when; which 【答案】C 【详解】考查定语从句。句意：这些老照片让他们回忆起一起度过的大学时光，那时的生活虽然艰苦，但很快乐。第一个空，“... they spent together”为定语从句，先行词是“the college days”，在定语从句中作“spent”的逻辑宾语，所以用关系代词“which”引导定语从句；第二个空，“... life was hard but happy.”为定语从句，先行词还是“the college days”，在后面的定语从句中作逻辑上的时间状语，所以用关系副词“when”引导定语从句。故选C。 23．A fast-food restaurant is the place, ________ you can eat quickly. A．which B．where C．there D．what 【答案】B 【详解】考查定语从句。句意：快餐店是你可以吃得很快的地方。分析句子结构可知，“ ... you can eat quickly.”是一个非限制性定语从句，先行词是 the place，表地点，在从句中作地点状语，要用关系副词where引导定从。故选B。 24．The result of the experiment was very good, ________ we hadn’t expected. A．when B．that C．which D．what 【答案】C 【详解】考查定从关系词。句意：实验的结果很好，这是我们没有预料到的。分析句子结构，“… we hadn’t expected”是一个非限制性定语从句，修饰整个主句的内容，关系词在从句中作宾语，用关系代词which引导非限制性定语从句。故选C。 25．_______________ is known to everybody, the moon travels round the earth once every month. A．It B．As C．That D．What 【答案】B 【详解】句意：众所周知，月亮每个月绕地球转一周。考查非限制性定语从句。it和what不是关系词，不可引导定语从句。that先行词既可以指人也可以指物；as引导非限制性定语从句；根据_____ is known to everybody, the moon travels round the earth once every month.可知，本题考查as引导的非限制性定语从句，as指代主句the moon travels round the earth once every month的句意内容，as在定语从句中做主语置于句首，非限制性定语从句放在主句前时，只用关系代词as。故答案选B。 26．He is my son, ________ a better son does not exist. A．but B．than who C．against whom D．than whom 【答案】C 【详解】考查介词及定语从句。句意：他是我的儿子，比他更好的儿子还不存在。“... a better son does not exist”是非限制性定语从句，先行词是“my son”；这里虽也是两者相比，但不是一般的比较，而是一种竞争性的比较，用against (与……竞争)，介词后用表人的关系代词whom。故选C。 27．My hometown, ________ is a small city, has changed a lot since 2010, ________ I left for college. A．which; when B．that; which C．where; that D．who; when 【答案】A 【详解】考查定语从句。句意：我的家乡是一个小城市，自2010年我离开家乡上大学以来，它发生了很大的变化。第一空，“... is a small city”是非限制性定语从句，先行词My hometown指物，在从句中作主语，故用关系代词which；第二空，“... I left for college”是非限制性定语从句，先行词2010是时间，在从句中作时间状语，故用关系副词when。故选A。 28．They will never forget the day ________ they climbed to the Mount. Tai. A．which B．that C．when D．in which 【答案】C 【详解】考查定语从句。句意：他们永远不会忘记他们登上泰山的那一天。分析句子可知，“... they climbed to the Mount. Tai”是定语从句，先行词the day指时间，在从句中作时间状语，故用关系副词when引导该定语从句。故选C。 29．This is a film ______Spielberg used real actors instead of stunt men. A．which B．whose C．in which D．of which 【答案】C 【详解】试题解析： in which Spielberg used real actors instead of stunt men.是定语从句来修饰film，which指代film，在定语从句中做介词in的宾语。in which在定语从句中做地点状语。 考点：定语从句 30．We are sending you our latest catalogue of the table cloths ________ you are interested. A．that B．which C．of which D．in which 【答案】D 【详解】考查定语从句。句意：我们将向您寄送您感兴趣的桌布的最新目录。分析句子可知，“...you are interested.”为定语从句，先行词为“our latest catalogue of the table cloths”，指物，且结合句意，此处表示“您感兴趣的桌布的最新目录”，be interested in表示“对……感兴趣”，将介词in提至关系代词which之前，构成介词+which 结构，故用in which引导定语从句。故选D。 31．That’s the day ________ I’ll never forget. A．in which B．on which C．which D．when 【答案】C 【详解】考查定语从句。句意：那是我永远不会忘记的一天。A. in which在定语从句中通常是作状语；B. on which在定语从句中通常是作状语；C. which关系代词，在从句中可以作作主语或者宾语；D. when关系副词，在定语从句中作时间状语。分析句子结构可知，这是一个定语从句，先行词是“day”，在这里指物，在从句中作宾语，应用“which”来引导定语从句。故选C。 32．This is the room in _________ Jason lived last summer. A．where B．which C．when D．who 【答案】B 【详解】考查定语从句。句意：这个是去年夏天Jason住的房间。分析句子可知，“...Jason lived last summer.”为定语从句，先行词为room，且关系词在定语从句内部充当地点状语，所以关系词应用where或者in which，空前有in。故选B。 33．She had completed the work all by herself, ________surprised all of us. A．it B．she C．that D．which 【答案】D 【详解】考查定语从句。句意：她完全独立完成了工作，这让我们所有人都感到惊讶。A. it它；B. she她；C. that那个或从句连接词；D. which 哪个或从句连接词。句子当中出现了两处谓语动词，且原句中并没有连接词，故应该判定后面是从句，空处为连接词，分析句子可知，“… surprised all of us.”为定语从句，修饰前面整个句子，故用关系代词“which”引导非限定性定语从句。故选D。 34．The company ________ his wife works is in the center of Shanghai. A．who B．that C．which D．where 【答案】D 【详解】考查定从关系词。句意：他妻子工作的公司在上海市中心。分析句子结构及选项可知，空处引导限定性定语从句修饰先行词“company”，关系词在从句中作地点状语，所以用关系副词where。故选D。 35．Is this the factory ________ you visited the other day? A．the one B．that C．where D．when 【答案】B 【详解】考查定语从句。句意：这就是前几天你参观的那家工厂吗？。分析句子结构可知，“... you visited the other day”是定语从句，先行词为“the factory”，指物，在从句中作宾语，故用关系代词that。故选B。 36．That was the only story book ________ John had read. A．that B．what C．where D．when 【答案】A 【详解】考查定语从句。句意：那是约翰读过的唯一的一本故事书。分析句子结构及选项可知，空处引导限定性定语从句修饰先行词book，关系词在定语从句中作“had read”的宾语，而且先行词前面有“the only”修饰，所以用关系代词that引导。故选A。 37．The house, ________ I bought last year, has a lovely garden. A．that B．which C．where D．in which 【答案】B 【详解】考查非限制性定语从句。句意：我去年买的这栋房子有一个漂亮的花园。分析句子可知，“... I bought last year”为非限制性定语从句，先行词是“the house”，在从句中作宾语，“that”不能引导非限定性定语从句，故用which引导非限制性定语从句。故选B。 38．This is the new bike ________ I bought yesterday. A．that B．where C．when D．how 【答案】A 【详解】考查定语从句。句意：这是我昨天买的新自行车。分析句子结构，“…I bought yesterday”是一个定语从句，修饰先行词“the new bike”，关系词在从句中作宾语，指物，用which或that引导该从句。故选A。 39．This is the most difficult problem ________ I have ever met. A．which B．where C．that D．why 【答案】C 【详解】考查定语从句。句意：这是我遇到过的最难的问题。分析句子结构及选项可知，空后面是定语从句，修饰先行词problem，关系词作动词have met的宾语，用关系代词that或which。当先行词被序数词或形容词最高级修饰时，用that不用which。此题中的先行词前有形容词最高级修饰。故选C。 40．I still remember the day ________ we spent together in the countryside. A．where B．which C．when D．on which 【答案】B 【详解】考查定语从句。句意：我仍然记得我们在乡下一起度过的那一天。分析句子可知，“... we spent together in the countryside”是定语从句，先行词the day是时间，在从句中spent的宾语，故用关系代词which引导从句。故选B。 41.（2023年河南省对口招生考试第27题） This is the person ______ Mr. Martin is looking for. A. whom B. which C. what D. where 【答案】A 【详解】考查定语从句。句意：这就是马丁先生在找的人。先行词是人，作宾语用whom。故选A。 42.（2022年河南省对口招生考试第30题） This is the room in_______Jason lived last summer. A. where B. which C. when D. who 【答案】B 【详解】考查定语从句。句意：这是杰森去年夏天住的房间。介词后指物用which。故选B。 43.（2021年河南省对口招生考试第30题） Do you know Tony_____mother is my English teacher? A. who B. whom C. whose D. that 【答案】C 【详解】考查定语从句。句意：你认识妈妈是我英语老师的托尼吗？whose作定语，表示“谁的”。故选C。 44.（2020年河南省对口招生考试第30题） This is the place ______we first met. A. what B. which C. when D. where 【答案】D 【详解】考查定语从句。句意：这是我们第一次见面的地方。先行词为地点，用where。故选D。 45.（2018年河南省对口招生考试第30题） I’ll never forget the day ____ we spent together. A. which B. on which C. in which D. when 【答案】A 【详解】考查定语从句。句意：我永远忘不了我们一起度过的那一天。先行词the day，在从句中作spent的宾语，用which。故选A。 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 学科网（北京）股份有限公司 学科网（北京）股份有限公司 $