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【判断题】
集成三端稳压器CW7812的输出电压为12V。( )A.
正确
B.
错误
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举一反三
【单选题】Look at the shoes. They are my __________.
A.
sister
B.
sisters
C.
sisters's
D.
sister's
【简答题】渐开线标准斜齿圆柱齿轮正确啮合条件为:________ ,__________ ,__________.
【单选题】 Look, they ________ a good time in the garden.
A.
are having
B.
have
C.
have had
D.
had
【简答题】 common continent embarrass flight immediately misunderstanding passenger search serious similar traffic wonder 1. About sy of the ...
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