【单选题】We have spent so much time on this question and it is not wor t h _______ again and again.
【多选题】TSG T7001-2009 《检规(简称)一曳引与强制驱动电梯》规定:“检验结论”栏,只填写几种检验结论。
【判断题】TSG T7001-2009 《检规(简称)一曳引与强制驱动电梯》规定检验机构不必长期保存监督检验原始记录和施工自检报告。
【单选题】It is not so much the language t he cultural background that makes the book difficult to understand.
【单选题】出现;发生;(由...)引起,(由...)产生