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设*2,4,6,,2,3,5,6,,则中元素的个数为(    )A.2             B.3   ...

问题详情:

设*设*2,4,6,,2,3,5,6,,则中元素的个数为(    )A.2             B.3   ...2,4,6,设*2,4,6,,2,3,5,6,,则中元素的个数为(    )A.2             B.3   ... 第2张,设*2,4,6,,2,3,5,6,,则中元素的个数为(    )A.2             B.3   ... 第3张2,3,5,6,设*2,4,6,,2,3,5,6,,则中元素的个数为(    )A.2             B.3   ... 第4张,则设*2,4,6,,2,3,5,6,,则中元素的个数为(    )A.2             B.3   ... 第5张中元素的个数为(    )

A. 2              B. 3              C. 5              D. 7

【回答】

B

知识点:*与函数的概念

题型:选择题

TAG标签:元素 b3 个数 a2 #