主要用于耐药金葡菌感染的半合成青霉素（）

A．青霉素V 

B．苯唑西林 

C．替卡西林 

D．哌拉西林 

E．舒巴坦

Good anchorage may be obtained anywany, generally mud and sand, in this water area. Vessel may have（）.

A.good towing ground

B.good holding ground

C.good grabbing ground

D.good dragging ground