【判断题】积屑瘤有保护车刀的作用,因此精车时允许积屑瘤存在。
【单选题】Please call me if ______________.
【单选题】----Please call me if there is a problem. ---- Thanks. I won’t ______ to ask for your help if I feel I need it.
【单选题】Please call me if ______________.
【判断题】压应力的数目及数值愈大,拉应力数目及数值愈小,金属的塑性愈好 。
【简答题】压应力的数目及数值愈大,拉应力数目及数值愈小,金属的塑性愈( )。
【简答题】用括号中所给单词的适当形式填空。 1. Please call me if you have any problems __________ (work) out. 2. Marie Curie received the Nobel Prize __________ (two) during her life time. 3. I think it is __________ (er) f...
【简答题】Please call me if ______________.
【简答题】Please call me if ______________.