处理及时率指标百万门以下局应大于98%。
参考答案:错
痢疾杆菌()
A.在流通空气中或阳光下30分钟失活
B.不耐酸和热,对乙醚敏感
C.在室温中2~3天失去传染性
D.在食物和食具上可生活1~2周
E.在痰和渗出物中可存活数周
The muster list shows each rig hand’s muster station,his duties during abandonment,basic instructions,and().
A.all emergency signals
B.instructions for lowering the survival craft
C.the time each weekly drill will be held
D.work schedule