【简答题】If you had asked him again, he might (change) ______his mind.(2014.6)
【简答题】布病虎红平板试验属于 ,试管凝集试验属于 。
【单选题】在气动主机遥控系统中,组成回避临界转速环节的阀件不包括()
【简答题】6 4. He is thinking of (leave) ________ his job and going to Germany for further study.
【单选题】某暗龙骨吊顶选用的饰面板规格为900×1800mm,龙骨规格不应为()。
【单选题】(2014.6)He was educated at the local grammar school, after ____ he went on to Cambridge.
【简答题】在结点荷载作用下,桁架各杆以承受( )为主。
【简答题】如果数量达到1万件,我们可以给您一个更好的价格。