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【单选题】
概率是描述某随机事件发生可能性大小的数值，以下对概率的描述哪错误的A.
其值必须由某一统计量对应的概率分布表中得到
B.
其值的大小在 0 和 1 之间
C.
随机事件发生的概率小于 0.05 或 0.01 时可认为在一次抽样中它不可能发生
D.
必然事件发生的概率为 1
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举一反三
【单选题】No matter how bright a talker you are, there are times when it’s better ______ silent.
A.
remain
B.
be remaining
C.
to remain
D.
having remained
【单选题】______ bright a talker you are, there are time when it’s better to remain silent.
A.
Whatever
B.
However
C.
Whenever
D.
Whoever
【单选题】Why is the book Silent Spring important to America' s environmental protection?
A.
It describes a silent spring.
B.
It topped the book sales lists.
C.
It changed how American thought about nature.
D.
It includes all Carson's research achievements.
【单选题】The phrase "Silent scorn" in "Anyone trying to finish his sentence for him feels the silent scorn of that imperturbably flicking finger" implies
A.
Hawking is silent to those who wants to help him.
B.
Hawking is very cynicic.
C.
Hawking does not want to rely on others to handle daily communications.
D.
Hawking is very hard working in handling daily communications.
【单选题】It's the media's responsibility to help those who are kept silent by their humble social positions to ___________ their wishes.
A.
ventilate
B.
articulate
C.
inaugurate
D.
mediate
【单选题】The doctor came out of the patient's room with a ______ look on his face.
A.
serious
B.
silent
C.
simple
D.
slight
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