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【单选题】
三相异步电动机在额定电压和额定频率下运行时,若负载发生变化,则旋转磁场每极的磁通( )。
A.
基本保持不变
B.
随负载增大而增大
C.
随负载增大而减小
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【多选题】有下列情形之一的，不经批准即可中止供电，但事后应报告本单位负责人().
A.
不可抗力和紧急避险
B.
确有窃电行为
C.
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【单选题】水调面团是由( )、温水面团、冷水面团组成
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B.
热水面团
C.
膨松面团
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【多选题】有下列情形之一的，不经批准即可中止供电，但事后应报告本单位负责人（）
A.
不可抗拒力
B.
紧急避险
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【单选题】水调面团是由热水面团、()、冷水面团组成。
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水油面面团
B.
温水面团
C.
澄粉面团
D.
膨松面团
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【单选题】听力原文：What happened to Tom? (10)
A.
He is a student.
B.
He will go to the hospital.
C.
He hurt his fingers.
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【简答题】Manners are different in every country; but true politeness is everywhere the same. Manners a re only 1 helps which ignorance assumes in order to imitate politeness, which is the result of good se nse...
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【单选题】水调面团是由( )、温水面团、冷水面团组成
A.
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B.
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C.
膨松面团
D.
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【多选题】有下列情形之一的，不经批准即可中止供电，但事后应报告本单位负责人（）
A.
不可抗拒力
B.
紧急避险
C.
确有窃电行为
D.
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【单选题】水调面团是由热水面团、()、冷水面团组成。
A.
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B.
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C.
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D.
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查看完整题目与答案
【单选题】听力原文：What happened to Tom? (10)
A.
He is a student.
B.
He will go to the hospital.
C.
He hurt his fingers.
查看完整题目与答案
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