试题 试卷
题型:单选题 题类:常考题 难易度:普通
4×(5+1)×(52+1)=(5﹣1)×(5+1)×(52+1)
=(52﹣1)×(52+1)=252﹣1=624.
请借鉴小黄的方法计算:
(1+ )×(1+ )×(1+ )×(1+ )×(1+ )×(1+ )×(1+ ),结果是{#blank#}1{#/blank#}.
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