隧道混凝土衬砌内部缺陷的检测内容有哪些?
参考答案:
①检测混凝土中的空洞或不密实
②检测混凝土中的裂缝
图幅大小相同的地图,比例尺越大,表示的范围越______,内容越______。
The woman always says a bad word about others. her workmates her child dislikes to make friends with her.
A.Either; or
B.Neither; nor
C.Both; and
D.Not only; but also