在混凝土工程中,配制有抗渗要求的混凝土可优先选用( )。
A.火山灰水泥
B.矿渣水泥
C.粉煤灰水泥
D.硅酸盐水泥
参考答案:A
认真阅读短文,判断句子的正误,正确的打“√”,错误的打“×”。
A Picture of Our School
Look! This is a picture of our school. There is a tall building in the middle of the picture. There is a big
playground in front of the building. There are many trees and flowers near the playground. The trees are green.
The flowers are red and yellow. And there are many boys and girls on the playground. They're playing games.
There is a house near the building. It's our school library (图书馆). And our department (公寓) is next to it.
We all like our school very much.
( ) 1. There is a big playground in the middle of the picture.
( ) 2. This is a picture of their school.
( ) 3. There are many flowers and trees in our school.
( ) 4. Many students are playing games on the playground.
( ) 5. Our school library is near the tall building.
()明确提出全面建设小康社会奋斗目标的新要求,即到2020年,人均GDP比2000年翻两番。
A.党的十七大报告
B.党的十六大报告
C.党的十八大报告
D.党的十五大报告