[判断题]试井防喷器闸板胶芯检查:选择的闸板胶芯应适合作业类型,胶芯工作面不应有磨损撕裂脱胶变形和老化等缺陷。( )
A.正确
B.错误

Text 2
Can this be the right time to invest in luxury goods Miuccia Prada was obviously biting her nails. The granddaughter of the founder of the Italian fashion group has just opened spectacular new stores in quick succession in New York and London. With its magic mirrors, silver displays and computer-controlled changing rooms, Prada’s two-month-old shop in Manhattan cost a staggering $ 40m, sits just a mile from Ground Zero, and sells practically nothing.
The luxury-goods business has been in despair in hasty succession against a background of a weakening global economy, an enduring slump in Japanese spending, and the September 11th terrorist attacks. The Japanese, who used to buy a third of the world’s luxury goods, cut their foreign travel in half after the attacks and tightened their Louis Vuitton purse-strings. At the same time, wealthy Americans stopped flying, which has a dramatic effect on the luxury-goods purveyors of London, Paris and
A. excessive advertisement resulted in the failure of Prada's investment.
B. luxury-goods companies must give thought to the impact of terrorist attacks.
C. execution is nothing but an auxiliary part of business management.
D. outsiders always hold some misconceptions of luxury-goods business.

背景资料
某办公楼工程，建筑面积18500m3，现浇钢筋混凝土框架结构，筏板基础。该工程位于市中心，场地狭小，开挖土方需上运至指定地点，建设单位通过公开招标方式选定了施工总承包单位和监理单位，并按规定签订了施工总承包合同和监理委托合同，施工总承包单位进场后按合同要求提交了总进度计划，如图所示（时间单位：月），并经过监理工程师审查和确认。
合同履行过程中，发生了下列事件：
事件一：施工总承包依据基础形式、工程规模、现场和机具设备条件以及土方机械的特点，选择了挖土机、推土机、自卸汽车等土方施工机械，编制了土方施工方案。
事件二：基础工程施工完成后，在施工总承包单位自检合格、总监理工程师签署“质量控制资料符合要求”的审查意见基础上，施工总承包单位项目经理组织施工单位质量部门负责、监理工程师进行了分部工程验收。
事件三、当施工进行到第5个月时，因建设单位设计变更导致工作B延期2个月，造成施工总承包单位施工机械停工损失费13000元和施工机械操作人员窝工费2000元，施工总承包单位提出一项工期索赔和两项费用索赔。