组合开关可用于（）。 ["3KW以下的小型动力机械电源隔离开关","3KW以下小型电动机的倒顺开关","5KW以上的电动机负荷开关","配电箱的电源开关"]
游梁式抽油机调冲次操作中，准备工具不包括（） ["专用摇把一根","合适规格拔轮器一副","铜棒一根","光杆卡子"]
解付银行汇票下列哪几项与票面不符，农信银中心返回拒绝应答（）。 ["票据类别","申请人账户","申请人户名","代理付款行行号"]
Excel2003处理时，需要对当前刚刚生成的文件“产品清单”进行保存时，下面说法正确的是（）。 ["可以保存在D盘根目录下又可以保存在已建好的“产品”文件夹下","只可以保存D盘下","只可以保存在C盘下","不可以保存在D盘根目录下又不可以已建好的保存在文件夹下"]
Wrought iron has an inherent resistance to corrosion but is not to be had freely , its place has been taken by the cuprous alloysAccording to the above sentence , which of the following statements is true?（） ["Wrought iron can resist liquids flow","It is difficult to attain the wrought iron","Wrought iron should be combined with cuprous alloys","The cuprous alloys have mere disadvantages than wrought iro"]
在扒装珠光砂时要注意哪些安全事项？
