普通混凝土的抗压强度很高,但它的抗拉强度仅为它的抗压强度的()。
A、1/8~1/7
B、1/7~1/6
C、1/6~1/5
D、1/5~1/4
参考答案:A
三合一强氧化洗消粉与水溶解后可对酸、碱物质进行表面洗消。
animals are in danger and there will be space for them if we don’t take any actions.
A.More and more, more and more
B.Less and less, less and less
C.More and more, less and less
D.Less and less, more and more