利用车用数字万用表测量汽车电路的电压时,其表棒的极性是()。
A、红棒接正极,黑棒接负极
B、红棒接负极,黑棒接正极
C、无要求
参考答案:A
造成着痹的主要邪气是( )
A.寒邪
B.风邪
C.热邪
D.湿邪
E.燥邪
Regulations of Customs duties on Imports and Exports of the People’s Republic of China is one of the ______ basis of the collection of the Customs duty.
A. legal B. finacialC. managerial D. none of the above