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【单选题】
设随机变量 的分布列为 下列说法正确的是A.
随机变量 与 互相独立
B.
随机变量 与 不互相独立
C.
随机变量 与 互不相容
D.
随机变量 与 不互不相容
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】_________ we fail, we ______ trying.
A.
Even if; will not stop
B.
Even though; will stop
C.
Even; will not stop
D.
Even if; will not stop to
【单选题】－Why haven’t you posted the letter?－I __________ to but I forgot about it.A．wishedB．likedC．expec
A.
24. －Why haven’t you posted the letter? －I __________ to but I forgot about it. A．wished
B.
liked
C.
expected
D.
Meant
【单选题】—Never touch my computer while I’m away． — .
A.
I shouldn’t
B.
I mustn’t
C.
I won’t
D.
I don’t
【单选题】Hans is warm-hearted person. When needed, he would show no _________ to help others.
A.
hesitate
B.
suspicious
C.
compaints
D.
reluctance
【简答题】Hans is a warm-hearted person. When needed, he would show no __________ to help others.
【单选题】Hans is a warm-hearted person. When needed, he would show no_____ to help others.
A.
plague
B.
craft
C.
reluctance
D.
charity
【单选题】—I don’t think you should use the dictionary while reading newspapers. —_____, but I can’t do without it.
A.
No, I should
B.
Yes, I shouldn’t
C.
No, I shouldn’t
D.
Yes, I should
【单选题】We have to__________a new manager from a short－list of five candidates.A．chooseB．selectC．electD．
A.
64. We have to__________a new manager from a short-list of five candidates. A．choose
B.
select
C.
elect
D.
Pick
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