《水利水电工程地质勘察规范》将岩石风化带分为（）
A.全风化
B.强风化
C.弱风化
D.微风化
E.以上全错
参考答案：A, B, C, D
This policy encourages companies to introduce new technologies take part in the International
competition.[ ]
A. as good as
B. as long as
C. as soon as
D. as well as
在起吊时，吊索与水平线的夹角不能小于（）。
A、30°
B、40°
C、45°
D、60°
