题目内容
（请给出正确答案）
If a small electric motor is immersed in salt water, it should be ()
A.washed in fesh water
B.dried in an oven
C.A and B
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If a small electric motor is immersed in salt water it should be _____(1) washed in fresh water; (2) dried in an oven
A.(1) only
B.(2) only
C.both (1) and (2)
D.neither (1) or (2)
A、线度很小； the linearity is small;
B、电荷呈球形分布； the charge is spherical;
C、线度远小于其它有关长度； the linearity is much less than the other relevant length;
D、电量很小； the electric quantity is very small;
A.of the diaphragm type
B.of the centrifugal type
C.of the positive displacement type
D.independently driven by electric motors
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