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【判断题】
对于装有鼓风机电阻器的汽车空调,改变鼓风机转速,实质是改变流至鼓风电动机的电流A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】回答时间继电器的文字符号及图形符号 2.回答速度继电器的文字符号及图形符号
【单选题】He quickly ______ behind the building to avoid being hurt by the stones thrown in his direction.
A.
ducked
B.
evaded
C.
escaped
D.
dodged
【单选题】It is well known that the whole power distribution of the ship’s electrical services mainly depend on the______.
A.
sub-boards
B.
main switchboards
C.
emergency switchboards
D.
distribution boards
【单选题】According to the passage, Capoco's driverless bus______.
A.
will run on electrical power but biofuel
B.
can adapt to different road conditions
C.
needs other outer systems' assistance
D.
must run slowly to make sure its route
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