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用数字0,1,2,3,4组成五位数中,中间三位数字各不相同,但首末两位数字相同的...
用数字0,1,2,3,4组成五位数中,中间三位数字各不相同,但首末两位数字相同的共有( )
A.480个
B.240个
C.96个
D.48个
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