由卖方办理投保手续的贸易术语是()。
A.DAT
B.FOB
C.EXW
D.CFR
参考答案:A
Don't spit everywhere ______. [ ]
A. in public
B. in the public
C. at public
D. at the public
为防止牵引供电设备对信号设备的干扰,采取了哪些防护措施?