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【简答题】
已知P(A)=P(B)=P(C)=0.25,P(AB)=0,P(AC)=P(BC)=1/16.求: ( 1)P(A ∪ B);(2)P(A ∪ B ∪ C);
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A.
It's seven years old.
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It's about five kilometres.
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It is fine.
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A.
that
B.
when
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which
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A.
put up
B.
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stand up with
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Although; can’t
B.
Despite; couldn’t
C.
In spite of; can’t
D.
Though; couldn’t
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