The man asking for a lift was()
A. a robber who robs drivers
B. a policeman who had worked in prison
C. a prisoner who had escaped from prison
D. a stranger with £ 100.00 in his pocket
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30()
A. informations
B. knowledge
C. background
D. information
The murderer was at last found ()
A. with the help of a Chevrolet owner
B. with the help of computers
C. by a witness
D. in a car
We ______ for her because she never came.
A. needn't wait
B. shouldn't have waited
C. mustn't wait
D. mustn't have waited
组织要素中最重要的因素是( )。
A. 人
B. 事件
C. 信息
D. 时间