根据预先设定好需要询问的问题，由（）依次进行电话询问并记录。 ["收费员","财务人员","营业厅主任","客服员"]
If clearance between a piston and the cylinder wall is excessive, piston slap will occurThe slap itself is caused by （） ["alternation of side thrust","a breakdown of the lube oil film on the cylinder wall","worn piston boss piston pin bearings","fluctuating gas pressure in the combustion space"]
当事人根据行政诉讼法规定向人民法院申请保全证据，以下说法错误的是（） ["A.在举证期限界满前口头或书面提出","B.说明证据的名称和地点","C.说明保全的内容和范围、申请保全的理由","D.同时提供担保"]
在进行电话调查之前，必须（）。 ["抽样出有个性的用户","查找有身份关用户","设定好需要询问的问题","针对重点用户"]
问卷调查程序的第一项内容是（）。 ["问卷分发至客户","制作满意度调查问卷","指导客户填写问卷","分析并记录问卷结果"]
螺杆空气压缩机系统包括空气系统、（）系统和（）系统。
