题目内容

The author’s parents accompanied her and arranged everything well for her when she first entered university.

A. 对
B. 错

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Because she was well prepared what would happen over the course of the four years in the university, the author dealt with everything calmly and confidently when she first entered university.

A. 对
B. 错

Too many baby-boomers are overly concerned with success. They just don’t want to let go.

A. 对
B. 错

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自动装车系统。控制要求：初始状态，红灯L1灭，绿灯L2亮，表示允许汽车开时装料，料斗K2、电机K1、M1、M2、M3皆不启动。当料不满时，料斗开关K2关闭，进料开关K1打开。当汽车到来时，红灯L1亮，绿灯L2灭，M3启动，2S后M2启动，在M2启动2秒后M1启动，料斗K2在M1启动2秒后打开，当料满后，料斗K2关闭，电动机M1延时2秒关断M1,M2在M1停止2秒后关断，M1在M2停止2秒后关断，然后L2亮，L1灭至，汽车驶走。