排粉机启动前应确认排粉机内(),各处地脚螺栓紧固,各轴承箱油位正常,油质合格,各轴承 发布时间:2018-10-04 01:00 │ 来源:www.tikuol.com 题型:多项选择题 问题: 排粉机启动前应确认排粉机内(),各处地脚螺栓紧固,各轴承箱油位正常,油质合格,各轴承冷却水投入畅通,且回水无飞溅和溢流。A.无杂物B.无积粉C.无碰击声D.无润滑
题型:多项选择题 Ms Liu saw a fashion dress in a shop which set her heart racing. However, its price was far beyond her _______. A.rangeB.certaintyC.reachD.contact 查看答案