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题目:
There are 11 women and 9 men in a certain club. If the club is to select a committee of 2 women and 2 men, how many different such committees are possible?
选项:
A、120
B、720
C、1,060
D、1,520
E、1,980
答案:
E
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11女选2个的可能性有66种,9男选2个45种,相乘没有答案符合 不会这种题思路
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1941
提问:
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想说选女生的有11*10种方式 男生有9*8种方式 然后。。。 就不知道该怎么做了。。。 是不是一开始思路就没对啊。。。。
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