—_______ we going to run ______ jump first?
A:Do, or
B:Are, and
C:Are, or
15-9=____,想:9加____得15.
已知全集I={0,1,2,3,4,5,6,7,8,9},集合A={1,2,3,4},集合B={2,3,5},函数y=log136-x的定义域为C.
(Ⅰ)求A∩B,(∁IA)∪B;
(Ⅱ)已知x∈I,求x∈C的概率;
(Ⅲ)从集合A中任取一个数为m,集合B任取一个数为n,求m+n>4的概率.
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