电流在( )以上的串励绕组和大型电机的并励绕组,常用裸扁线绕制成形。
A.50A
B.75A
C.100A
D.200A
参考答案:B
目前支持可视电话的3G标准有:()
A.TD-SCDMA
B.CDMA2000
C.WCDMA
We have lodged a claim ______ the seller for the shortage of shipment ______ S. S. DONGFENG.
A. against, ex B. with, underC. on, as per D. with, to