問題詳情

30. Why may the writer worry about the self-driving cars?
(A) They’re able to tell all the signs on the roads.
(B) The car computer may not work and then hurt people.
(C) It’s always safe to take self-driving cars.
(D) People have no chance to sleep when taking trips in thesecars.

參考答案

答案:B
難度:計算中-1
書單:沒有書單,新增

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