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4. In T59's opinion, humans are A smart B polite 5. According to the text r62 A dared not look at the human directly B was not friendly to the human C. decided to give up its job D. hoped to live on the earth 6. What can we learn from the story? A r62 doesnt know what human beings look like B R62 and T59 are brothers and do different jobs. C. T59 doesnt want to support human beings D. T59 knows a lot about human beings 7. What's R62's attitude towards humans creating robots A Frightened B. Excited C. Doubtful D Supportive If you're concerned about climate change, should you feel guilty about hanging out online Maybe not Data, or information, is often processed and stored on a computer. A computer that provides data to other computers is called a server. Servers also store data such as videos, pictures and emails. a building that holds many servers is known as a data center. Without data centers and servers, we could not access websites on our own computers and phones every day Some people worry that data centers use a lot of energy, which could be bad for the environment But recent studies found that data centers do not use as much energy as they thought Eric Masanet, a professor at Northwestern University, is the studys main author. Masanet and his team looked at the energy used by data centers around the world, and found that data centers have improved. They saw a 20 percent energy improvement each year. These improvements are due to better servers. They use less energy than servers once did. Othe technologies have also improved Masanet said to make sure computers use energy effectively, some things need to happen Businesses and governments should get involved. Countries need to be open about how much electricity their data centers use. Large data companies also need to source their electricity from renewa ple energy, such as sunlight and wind. For example, Google and Apple both purchased or generated enough renewable electricity to match 100 percent of their d