由2、3、4、5、7五張數字卡所排成的四位數中,2的倍數有幾個?
(A) 100個 B) 80 個
(C) 56 個 D) 48 個。...
Mathematics, 28.02.2021 06:20 samreitz1147
由2、3、4、5、7五張數字卡所排成的四位數中,2的倍數有幾個?
(A) 100個 B) 80 個
(C) 56 個 D) 48 個。
Answers: 1
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