配送所包含的那一部分运输,在整个运送过程中是处于()的位置。
A、二次运输
B、支线运输
C、终端运输
D、接单
参考答案:A, B, C
The Jiangsu TV station is very popular with many people in China, as it deals with sub-jects such as music, entertainment and fashion.
A.precise
B.diverse
C.casual
D.regular
弧焊整流器是采用硅二极管或()作整流器的直流弧焊电源。