膨胀螺栓的()、()、()和(),应符合设计要求。
参考答案:埋置深度;焊缝长度;高度;焊条型号
Look at the skirt. I bought it for my daughter ______ Children's Day. [ ]
A. in
B. on
C. at
D. to
室内线路线中应尽量减少导线接头,以减少()点。
A、故障
B、接触
C、断开
D、检查