绿脓杆菌感染时可用
A．磺胺嘧啶+链霉素B．磺胺甲恶唑+甲氧苄啶C．羧苄西林+庆大霉素D．磺胺嘧啶+青霉素E．青霉素+链霉素
参考答案：C
按照《中国银行柜台文明优质服务规范》要求，员工发式庄重，不得染指甲。（）
A chain bridle is used when towing astern because it（）.
A.is easy to connect
B.provides an effective catenary and absorbs shock due to its weight
C.makes rigging a swivel unnecessary
D.prevents the tow from yawing by the drag of the chains in a seaway
