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【单选题】
电流的大小用电流强度来表示,其数值等于单位时间内穿过导体横截面的( )。A.
电流
B.
电荷量
C.
电流强度
D.
功率
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A.
B.
C.
C
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A.
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A.
[A]It is very popular among painters.
B.
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C.
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