下列哪种辅料可以做崩解剂
A.海藻酸钠
B.羟丙甲基纤维素
C.聚乙二醇
D.交联聚维酮
E.羧甲基纤维素钠
参考答案:D
There ____ a dolphin show in the zoo tomorrow evening. [ ]
A. is going to be
B. will go
C. will have
D. is going to have
在松散地层中形成的洞穴,高2m,宽3m,地层内摩擦角φ=38°,应用普氏理论,该洞穴顶板的坍塌高度最可能是()。
A.6.9m
B.3m
C.5.2m
D.8m