题目: 铲运机是经常采用的土方作业机械之一,为了提高铲运机的生产率,除了合理确定开行路线外,还应根据施工条件选择施工方法,常用的施工方法有()。A.8字形法B.环形法C.跨铲法D.助铲法 答案: 参考答案:C, D
题型:选择题 24. In the reading room, we found her ______ at a desk, with her attention _______ on a book.A.sitting; fixingB.sat; fixedC.seating; fixingD.seated; fixed 查看答案
题型:选择题 She packed______ her job, and went off to Qingdao for the Navy celebration.A.awayB.offC.upD.out 查看答案