31. Why are scientists striving to make changes in the traditional robot?
(A) So the robots can be used to read human minds.
(B) So the robots can navigate over uneven ground.
(C) So the robots can be used to conduct experiments.
(D) So the robots can be used to predict weather.
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統計: A(5), B(64), C(17), D(1), E(0) #1587686
統計: A(5), B(64), C(17), D(1), E(0) #1587686