题目内容

[A]mixed
[B]strong
[C]personal
[D]warm

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The author' s main purpose in the second paragraph is to_________ .
[A] discuss the problem of handling trash
[B] suggest ways to cope with traffic problems
[C] point out the disadvantages of heavy traffic
[D] propose an alternative system of transportation

[A]although
[B]but
[C]besides
[D]for

We can infer from the text that robots now _________ .
[A] are clever enough to make good soups
[B] know the rules for working with humans
[C] cannot work well when kept behind gates
[D] do not understand human expressions of pain

听第9段材料，回答第13 -16题。
13. Where does this conversation take place？
[ A] In a library.
[B]In a bookstore.
[C] On a sports field.