问题 解答题

0.7×0.7÷0.7×0.7=1.______.

答案

0.7×0.7÷0.7×0.7,

=0.7÷0.7×0.7×0.7,

=1×0.7×0.7,

=0.49;

故答案为:错误.

单项选择题
单项选择题