手术人员已洗好手，进行手术区域皮肤消毒、铺单后，穿戴好无菌手术衣和手套，上台准备手术。手术进行中，术者前臂碰了有菌地方，此时应（）

A.更换另一手套

B.重新洗手穿无菌衣、戴手套

C.用70%酒精消毒术者前臂衣袖

D.加穿另一无菌袖套

E.重新更换手术无菌单

Ships sailing in（）are able to receive and print out EGC message.

A.a fixed area or Navarea in any ocean region

B.a Navarea or weather forecast area

C.the designated area or given geographic position

D.anywhere of the world