施工技术交底的层次、阶段及形式应根据工程的规模和()及施工人员的素质确定。
A.施工图纸
B.工艺标准
C.施工合同
D.施工的复杂、难易程度
参考答案:D
Af'ter discussion, the students _____ some good ideas to work on the project. [ ]
A. put up
B. set up
C. caught up with
D. came up with
锤式破碎机启动初期振动较大的原因是什么?