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【多选题】
刀开关的选择原则有哪些?
A.
根据刀开关的用途和安装位置选择合适的型号和操作方式
B.
根据控制对象的类型和大小,计算出相应负载电流大小,选择相应级额定电流的刀开关。
C.
刀开关的额定电压应等于或大于电路额定电压,其额定电流应等于或稍大于电路工作电流。
D.
在开关柜内使用还应考虑操作方式。
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举一反三
【单选题】She suddenly saw him standing in the crowed, his eyes______ her like they had in school.
A.
stared at
B.
staring at
C.
being stared at
D.
to stare at
【多选题】限期使用的产品应当在其产品标识的显著位置上标明( )。
A.
生产日期
B.
安全使用期或失效日期
C.
“限期使用”字样
D.
“过期不得使用”字样
【单选题】陈小朗第四节旅游组织与旅游标识6.将每年的5月19日定为中国旅游日是因为著名地理学家,旅行家徐霞客()。
A.
所著《徐霞客游记》开篇于这一天
B.
出生于这一天
C.
所著《徐霞客游记》完成于这一天
D.
出外旅行开始于这一天
【单选题】Suddenly, she saw a man at the bus (station).
A.
路标
B.
公交车
C.
车站
【多选题】限期使用的产品应当在其产品标识的显著位置上标明( )。
A.
生产日期
B.
全使用期或失效日期
C.
“限期使用”字样
D.
“过期不得使用”字样
【简答题】阅读理解。 One day an old woman was traveling alone in the mountains. Suddenly she saw something shining in the stream. When she came close, she found it was a precious stone. She put the stone into her ba...
【简答题】A young woman was driving through the lonely countryside. It was dark and rainy. Suddenly she saw an old woman by the side of the road, holding up her hand as if she wanted a lift(搭便车). 'I can't leave...
【简答题】A young woman was driving through the lonely countryside. It was dark and raining. Suddenly she saw an old woman by the side of the road, holding her hand out as if she wanted a lift.  “I can't leave ...
【简答题】A young woman was driving through the lonely countryside. It was dark and raining. Suddenly she saw an old woman by the side of the road, holding her hand out as if she wanted a lift. “I can’t leave h...
【简答题】One day a woman got into her car and started driving home after work. Suddenly, she saw a yellow car behind her. The 41 was a man. Wherever she drove, the young man followed her. When she 42 at the tr...
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