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【单选题】
在室温下断开时,元件从较大的通态电流降至刚好能保持导通的最小阳极电流称为 __ _ 。
A.
维持电流
B.
掣住电流
C.
额定电流
D.
触发电流
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A.
à
B.
d ’
C.
y
D.
pour
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A.
à la
B.
au
C.
aux
D.
du
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A.
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B.
镰刀和锤子
C.
镰刀和斧头
【单选题】中国共产党党徽为____和锤头组成的图案。
A.
菜刀
B.
剪刀
C.
镰刀
D.
砍刀
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A.
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B.
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【单选题】--I wonder if you could spare a little time to help with my English tonight? --_____. I have no extra work to do anyhow.
A.
Sure, go head
B.
No, well done
C.
No, indeed
D.
Certainly, after you
【单选题】Je vais au magasin à pied ____il fait beau.
A.
depuis
B.
qu ’
C.
si
D.
quand
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