【单选题】---Did you have any trouble with the western customs ? ---_________ to speak of.
【单选题】抗生素类药物的常规检查项目中不包括( )
【判断题】对于直径很小的钢制齿轮,当为圆柱齿轮时,若齿根圆到键槽底部的距离 e<2mt ( mt 为端面模数);当为锥齿轮时,按齿轮小端尺寸计算而得的 e<1.6m 时,均应将齿轮和轴做成一体,叫做齿轮轴
【单选题】Did you have any trouble ____ the post office?
【单选题】护士在铺暂空床的操作中,符合节力原则的是
【简答题】Did you have any trouble finding the butterfly specimen Prof.Nolen wanted?