脚手架及其地基基础应在下列阶段进行检查和验收（）。A、基础完

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问题多项选择题

脚手架及其地基基础应在下列阶段进行检查和验收（）。

A、基础完工后及脚手架搭设前

B、作业层上施加荷载前

C、达到设计高度后

D、停用超过一个

答案

参考答案：A, B, C, D

填空题

根据短文内容和首字母提示完成下列单词。

J 1 1st is New Year's Day. Women's Day is on Match e 2 The first of M 3 is May Day

China's Youth(青年)Day comes after it It's on May f 4 .Children's Day is on J 5 1st J 6 1st is

our Party's birthday A 7 1st is the Army (军队) Day. Teachers' Day is on t 8 of September.O 9

1st is our National Day. D 10 you know the other days?

判断题

凝析气不属于天然气。