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【单选题】
根据本题题干回答以下（1）（2）题
假设P (A) = 0.4，P (A∪B) = 0.9，在以下情况下求P (B)：
（1）A, B不相容；
A.
0.5
B.
0.6667
C.
0.8333
D.
0.9
参考答案：
参考解析：
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举一反三
【单选题】The children’s excitement is _____ as Christmas gets nearer.
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mounting
B.
escalating
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amounting
D.
descending
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A.
O(lgk)
B.
O(klgn)
C.
O(nlgk)
D.
O(lgn)
【单选题】The recession has forced a lot companies to cut down on graduate ( ).
A.
recruitment
B.
enrolment
C.
arrangement
D.
deployment
【单选题】若所有print方法均为static，则其结果输出为
A.
Manager Employee
B.
Person Person
C.
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相关题目：
【单选题】The children’s excitement is _____ as Christmas gets nearer.
A.
mounting
B.
escalating
C.
amounting
D.
descending
【单选题】、元件A与两个并联的元件B及C串联而成（即B与C并联，然后再与A串联）
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B.
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C.
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D.
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【单选题】What's the amortized complexity in a sufficiently long sequence of accessing k nodes in a splay tree of size n?规模为n的伸展树中若所访问的节点只有k个，经过足够长时间的访问序列后，访问的分摊复杂度为：
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O(lgk)
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O(klgn)
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O(nlgk)
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O(lgn)
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正确
B.
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【单选题】The recession has forced a lot companies to cut down on graduate ( ).
A.
recruitment
B.
enrolment
C.
arrangement
D.
deployment
【单选题】若所有print方法均为static，则其结果输出为
A.
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B.
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