某实施施工监理的工程，建设单位按照《建设工程施工合同(示范文本)》与甲施工单位签订了施工总承包合同。合同约定开工日期为2006年3月1日，工期为302d，建设单位负责施工现场外道路开通及设备采购；设备安装工程可以分包；甲施工单位通过筛选与乙施工单位签订了安装分包合同。经总监理工程师批准的施工总进度计划如下图所示(时间单位：d)。
在施工过程中发生了以下事件。
事件一：由于道路没有及时开通，使开工日期推迟到2006年3月4日，并造成施工方经济损失3万元，为此，施工单位于2006年3月10日向监理单位提出延长工期的索赔。
事件二：在基础工程施工中，由于遭遇特大暴雨，土方工程发生滑坡，造成人员、机械损失共计57万元，导致C工作持续时间延长12d，为此提出经济补偿与工期的延期。
事件三：在主体施工过程中，甲施工单位为保证工程质量，改进了混凝土泵浇注的施工工艺，延误F工作时间10d，为此甲施工单位向建设单位提出延期10d的申请。
事件四：设备安装工程完工后进行验收，第一次试车验收结果不合格，经检查分析，是由于设备本身质量有问题造成的，为此乙施工单位提出将已安装的设备拆除，重新安装，并重新组织试车验收。为此造成J工作持续时间延长24d，费用增加6万元，甲施工单位就此提出工期和费用索赔。
问题：
事件4中，建设单位做法的不妥之处，说明理由。
参考答案：
(1) 事件四中的验收应由甲施工单位组织。
(2) 监理单位对甲施工单位的索赔要求的答复：同意补偿设备拆除、重新安装和试车费用合计6万元；
C工作持续时间延长12d后，J工作持续时间延长24d，只影响工期1d，同意顺延工期1d。
[理由] 因设备本身出现问题，不属于甲施工单位的责任
(3) 乙施工单位可得到的补偿是：乙施工单位可顺延工期24d，可获得费用补偿6万元。因为第一次试车不合格不属于乙施工单位责任。
son would 36 him on the farm, enable it to expand, and eventually take it 37 . But Henry proved a 38 . He hated farm work and did everything he could to 39 it. It was not that he was lazy. 40 from it! Give him a mechanical job to do, from mending a gate to sharpening tools, 41 he would set to work eagerly. It was the daily life of the farm, with its dull tasks, 42 upset him.
Henry was excited by the development in technology that could __43 farmers like his father from wasteful and 44 labor. But these developments, in Henry’s boyhood, had touched farming 45 at all and farmers went on doing things in the way they had always done. So Henry 46 his attention elsewhere. When he was twelve, he became 47 in clocks and watches. Soon he was repairing them for friends, working at a bench he built in his bedroom. 
and watches as objects of Henry’s fascination. Making and installing them was the business of the Detroit workshop that he joined at the age of sixteen.
A. learn B. find C. Work D. join