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【单选题】
低压断路器中的电磁脱扣器承担（）保护作用。A.
B.
过载
C.
过电压
D.
欠电压
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】According to the conversation, what service can you use when you send an article of special value?
A.
The ordinary letter and parcel service.
B.
Registered Letter Post.
C.
Recorded Delivery Service.
D.
Compensation Fee Parcel Service.
【简答题】Computer technology has become an important part of people’s life．This technology has its own special words．One well-known computer word is Google．It’s the name of a popular “search engineer(引擎)” for ...
【单选题】The town is famous for its magnificent church towers.
A.
distinguished
B.
contemporary
C.
specialized
D.
specified
【单选题】A vessel to which Annex V to MARPOL 73/78 applies is located in a MARPOL designated special area，14 nautical miles from nearest land.What type of garbage is permitted to be discharged?
A.
Paper products
B.
Glass ground to less than 1
C.
Metal ground to less than 1
D.
Food waste
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