题目内容

______ reading in English enriched his life and laid a solid foundation for his future writing.

A. Expansive
B. Widespread
C. Extensive
D. Overall

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His application for a US visa was ______ because of the inclination of immigration.

A. injected
B. objected
C. rejected
D. subjected

I'm afraid you still can't understand the manufacturing process and you'd better go to the lab to it .

A. check ... with
B. check ... on
C. check ... for
D. check ... out

抛掷一枚硬币，观察其出现的是正面还是反面，并将事件A定义为：事件=出现正面，这一事件的概率记作P（A）。则概率P(A)=1/2的含义是（）

A. 抛掷多次硬币，恰好有一半结果正面朝上
B. 抛掷两次硬币，恰好有一次结果正面朝上
C. 抛掷多次硬币，出现正面的次数接近一半
D. 抛掷一次硬币，出现的恰好是正面

一部电梯在一周内发生故障的次数X及相应的概率如下表所示：

A. 0.35
B. 0.10
C. 0.25
D. 0.30