冬期施工为防止水泥假凝,混凝土搅拌时,应先使水和砂石搅拌一定时间,然后加入水泥。
参考答案:对
同义句转换。
1. Li Ming works hard. The fact is well known to us all.
_____ Li Ming _____ is well known to us all.
2. He failed the exam. The news surprised us greatly.
_____ he failed the exam surprised us greatly.
3. He suggested the meeting be delayed, but was turned down.
_____ the meeting _____ was turned down.
4. When will he start? I have no idea about it.
I have no idea ______.
5. "Is the work worth doing?"This is the question he asked me.
He asked me the question _____ worth doing.
印刷制品中,纸张尺寸书写的顺序是先写纸张的短边,再写长边,纸张的纵向(纸张的纹路)用()表示,放置在尺寸之后
A.SRA
B.K
C.M
D.RA