硅酸盐水泥的强度等级根据下列什么强度划分?()
A.抗压与抗折
B.抗折
C.抗弯与抗剪
D.抗压与抗剪
参考答案:A
解析:硅酸盐水泥的强度等级是根据抗压强度与抗折强度划分的。
根据句意、首字母写出单词。
1. It's important to r _____ paper to save the trees.
2. Don't p_____ the door! You should push the door.
3. We are supposed to p _____ the hungry children with food.
4. That big zoo is s _____ for animals to live in.
5. It was so dark that I could h _____ see anything.
半岛是指( )
A.陆地伸进海洋的部分
B.海洋伸进陆地的部分
C.陆地被海洋分割的部分
D.陆地被海洋包围的部分