计算 -1÷(-5)x1/5的结果是A.-1 B.1 C.1/25 D.25
问题描述:
计算 -1÷(-5)x1/5的结果是
A.-1 B.1 C.1/25 D.25
答
c
答
1/25
答
答案:C.1/25
原式=1/5x1/5
=1/25
答
-1÷(-5)x1/5
=-1x(-1/5)x1/5
=1/25
所以:选择(C)