【单选题】安全电流:指人体触电后最大的摆脱电流,我国规定为( )(50Hz交流)。
【单选题】The Bill of Rights ___.
A.
defines the rights of Congress and the rights of President
B.
guarantees citizens of the US specific individual rights and
C.
is part of the Declaration of Independence
D.
has no relationship with the Constitution
【判断题】唐诗是中国古代文学的高峰,也是中国古代诗歌发展的高峰。()
【多选题】建筑施工企业对职工进行劳动安全生产教育培训的主要内容应当包括()的教育培训
【单选题】The Bill of Rights ______.
A.
defines the rights of Congress and the rights of the President
B.
guarantees citizens of the United States specific individual rights and
C.
is part of the Declaration of Independence
D.
has no relationship with the Constitution
【单选题】当客人离店时带走了客房用品,工作人员最好的处理方法是( )。
【判断题】熔 断器 对短路 反应灵敏,但对过载反应不是很灵敏。( )