单桩的竖向承载力

《美国的悲剧》属于现代文学派别中的：[ ]

A．批判现实主义流派

B．意识流派

C．超现实主义派

D．象征主义派

10个月小儿患化脓性脑膜炎，脑脊液培养为肺炎链球菌，首选药物是（）。

A.红霉素

B.青霉素

C.氯霉素

D.庆大霉素

E.磺胺嘧啶钠

If I _____ a quarrel with him yesterday, we _____ together now. [ ]

A. hadn't had; would stay

B. haven't had; would have stayed

C. didn't have; would stay

D. hadn't had; would have stayed

杆件变形的基本形式有（）。

A.轴向拉伸变形

B.轴向压缩变形

C.剪切变形

D.扭转变形

E.弯曲变形

TD-SCDMA系统中通常一帧为（）

A、10ms

B、4.615ms

C、30ms

D、577ms