安全生产监督检查的基本特征是()。
A.权威性
B.广泛性
C.强制性
D.指导性
E.普遍约束性
参考答案:A, C, E
---Excuse me, Sir .But smoking is not allowed here.
-----Sorry,I didn’t see the sign.I’ll __________ my cigarette at once.
A.put out
B.put away
C.put up
D.put off
脊髓灰质炎病毒分几型()
A.1
B.2
C.3
D.4
E.5