砂浆的稠度越大，分层度越小，则表明砂浆的和易性越好。
查看答案
砂浆的保水性用（）来评价。
A. 沉入度
B. 坍落度
C. 分层度
D. 保水率
砂浆抗压强度试验的试件数量为一组（）块。
A. 10
B. 6
C. 3
D. 9
In what way is Chusovitina different from her competitors?
A. She has competed in two Olympic Games.
B. She doesn’t represent any country.
C. She is older.
D. She has a son.
Why did Chusovitina move to Germany?
A. To receive better training.
B. To compete in the Olympics.
C. To coach the German gymnastics team.
D. To get medical treatment for her son.
微信支付 
支付宝支付