设备标识的范围包括:二次连接片、空气开关、()切换开关的名称标识;保护及自动装置、测控装置等装置的名称标识;
A、断路器
B、熔断器
C、隔离开关
D、按钮
参考答案:B, D
The film was so _____ that soon all the children in the cinema began feeling _____ of it and they went out
one by one. [ ]
A. bored, boring
B. boring, boring
C. bored, bored
D. boring, bored
圆盘造球机填充率一般在()%范围变动为宜。
A.5~10
B.10~15
C.10~20
D.20~30