问题
单项选择题
The product of three consecutive integers must be
Ⅰ. Divisible by 3
Ⅱ. Divisible by 5
Ⅲ. Divisible by 6 ？（）
A.Ⅰ only
B.Ⅱ only
C.Ⅰ and Ⅱ only
D.Ⅰ and Ⅲ only
E.Ⅰ，Ⅱ，and Ⅲ
答案
参考答案：D
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