数据传输终端的作用是防止信号发生反射。
参考答案:对
-Excuse me. Could you tell me _____?
-Yes. There is a video shop on River Road.[ ]
A. where can I buy some CDs
B. when I can buy some CDs
C. when can I buy some CDs
D. where I can buy some CDs
单千斤索轻型吊杆在双杆作业时,稳索的系结位置要适当,其系结点:舷外吊杆的稳索在两吊杆根部连线(),舷内吊杆的稳索要在两吊杆根部连线()。
A.后方;前方
B.前方,后方
C.前方,前方
D.后方,后方