四边形都有四个直角四条边．______．_爱下问搜题

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问题解答题

四边形都有四个直角四条边．______．

答案

由分析得出：四边形都有四个角、四条边，但是四个角不一定都是直角．

所以四边形都有四个直角四条边说法错误．

故答案为：错误．

完形填空

用适当的词完成这篇短文，每个空格只能填写一个形式正确、意义相符的单词。

This Sunday is Mother’s Day. For Lucy and Andy, it’s the 小题1: important day. They _小题2:_to do something nice to make their dear mother, Mrs. Green 小题3:. Their mother has done a lot for both Lucy and Andy. She spends almost all her time doing housework and ___小题4:__ good care of them, She is not only a __小题5:_ , but also a teacher and a friend.
Mrs. Green _小题6:_ to go to evening classes two years ago, _小题7:_ she felt it was difficult for her to help her children with their school work. But these days she can’t see ___小题8:___ when she reads. Lucy says the best present for her mother is a pair of ___小题9:__. And Andy thinks that is a good 小题10:.

多项选择题

心气亏虚临床常见症状有

A．心悸

B．气短

C．盗汗

D．面白光

E．神疲