6. In an automated highway system, all the driver needs to do is_?
A. keep in the right lane
B. wait to arrive at his destination
C. keeping constant touch wit^i the computer center
D. inform the system of his destination by phone
讲解答案:
D根据文章最后一段的内容:司机用电话把他的目的地告诉系统,计算机就会计算出最佳的路线,D 项是正确的。
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