带式输送机机头应配备不少于()只的合格灭火器。
A、4
B、2
C、1
D、3
参考答案:B
----- _______ in the workshop. Please stop it.
----- Sorry. I________.
A.Smoking is not allowed, don’t know
B.Not smoking, an not sure
C.Don’t smoke, have no idea
D.Smoking is forbidden, didn’t know
急性呼吸窘迫综合征的病位在()
A.病位在肺,发生发展与肾、心密切相关
B.病位在肺,发生发展与脾、心密切相关
C.病位在肺,发生发展与肝、心密切相关
D.病位在肺,发生发展与肾、脾密切相关
E.病位在肺,发生发展与肾、肝密切相关