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【单选题】
下列不同类型的过电压中,不属于内部过电压的是A.
工频过电压
B.
操作过电压
C.
谐振过电压
D.
大气过电压
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反馈参考答案：
举一反三
【简答题】三相半波可控整流电路在电阻性负载时,控制角的移相范围是 。
【简答题】简述细胞膜的液态镶嵌模型的要点。
【简答题】备份界面设计遵循的原则是什么?
【单选题】Which of the following statement is NOT true?
A.
Getting off to work with a minimum effort helps save one's energy.
B.
Dr. Kleitman explains why people reach their peak at different hours of day.
C.
Habit helps a person adapt to his own energy cycle.
D.
Children have energy cycles, too.
【简答题】备份界面设计遵循的原则是什么？
【单选题】According to the passage, which statement is NOT true about dementia?
A.
24 million people have dementia around the globe.
B.
Alzheimer's is one of the types of dementia.
C.
Bilingual people might delay suffering from dementia.
D.
Dementia patients don't have executive control system.
【单选题】Which statement best describes the main idea of the passage?
A.
It discusses the advantages and disadvantages of freezers.
B.
It tells the most economical ways to use a freezer.
C.
It explains how to defrost a manual-defrost freezer.
D.
h offers advice about choosing and caring for a freezer.
【单选题】Which of the following statement is NOT true?
A.
The relationship between D. H. Lawrence's parents may not be so good.
B.
Ｄ. H. Lawrence's mother was a woman of strong will.
C.
Ｄ. H. Lawrence's mother did not like her home at Eastwood.
D.
Ｄ. H. Lawrence was the first child in the family.
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