問題詳情

39. According to this reading passage, how did the researchers assure the safety of the flying robots?
(A) A laboratory test was conducted.
(B) It was tested in a small town.
(C) It was analyzed by a computer stimulation test.
(D) It was tested in an artificial scenario.

參考答案

答案:D
難度:適中0.5
統計:A(0),B(0),C(0),D(0),E(0)

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