【单选题】安全生产必须把好“六关”,“六关”包括______。
A.
措施关、交底关、教育关、防护关、检查关、改进关
B.
质量关、交底关、教育关、监控关、检查关、改进关
C.
质量关、培训关、教育关、防护关、检查关、改进关
D.
措施关、培训关、教育关、监控关、检查关、改进关
【简答题】A.There are few employees. B.It is becoming too old. C.It is over-crowded. D.It lacks money to cover its expenses.
【单选题】It is a nightingale ___ is singing over there.
【判断题】爬轮式常用于建筑用人货两用户外电梯。( )
【单选题】“说”和“悦”这组古今字,古字和今字的关系是( )