题型:填空题 在进行剪板机操作时,正确的做法是,( )。A.独自1人操作剪板机,完成送料、控制尺寸精度及取料B.可以同时剪切两种不同规格、不同材质的板料C.剪切的板料表面平整的可以叠料剪切D.剪板机操作者送料的手指离剪刀口应保持最少200mm以外的距离 查看答案
题型:填空题 Personally, the job as a teacher _____ be challenging, for I sometimes _____ deal with some smarter but less diligent students. A.can; have toB.may; canC.has to; mayD.ought to; must 查看答案