| The job was done, and it was time for a
last cigarette. Eddie began tapping the pockets of his overalls, looking for the
new packet of Marlboro he bought that morning. It was not there. It was as he swung around to look in his toolbox for the cigarettes that Eddie saw the lump. Right in the middle of the brand new bright red carpet, there was a lump. A lump the size of a packet of cigarettes. "I’ve done it again said Eddie angrily. "I’ve left the cigarettes under the carpet He had done this once before, and taking up and refitting the carpet had taken him two hours. Eddie was determined that he was not going to spend another two hours in this house. He decided to get rid of the lump another way. It would mean wasting a good packet of cigarettes, nearly full, but anything was better than taking up the whole carpet and A. her pet was nowhere to be found B. fitting the carpet would be expensive C. Eddie would smoke in the house D. Eddie hadn’t done a proper job [多项选择]多元回归模型的基本假设是( )
A. 误差项u的数学期望值是0 B. 误差的方差为一常量 C. 各项误差之间不存在相关关系 D. 自变量是事先给定的，彼此之间不存在相关关系 E. 自变量是事先给定的，彼此之间存在相关关系 [单选题]项目章程 （）
A.明确了项目经理 B.确定了项目的质量标准 C.明确了团队的纪律 D.定义了项目需求 [不定项选择题]某妇女，28岁，外阴痒、白带增多半年。妇科检查发现：阴道壁充血，宫颈光滑，白带呈稀薄泡沫状。
为确定诊断，进一步的检查是
A.阴道分泌物悬滴试验 B.尿常规 C.三合诊 D.诊断性刮宫 E.阴道脱落细胞检查 [单选题]《铁路技术管理规程》规定，线路坡度超过( )，长度为8km及以上时，该线路属于长大下坡道。
A.4‰ B.5‰ C.6‰ D.8‰ [单项选择]项目的承包商在施工中，一定会明确固定的开始时间与结束时间，一旦按期结束项目即已完成，这属于项目（）属性。
A. 特定目标的唯一性 B. 临时的一次性 C. 不断完善的周期性 D. 不确定性 [判断题]节流管汇可以对油管压力进行监测。( )
A.正确 B.错误 [单选题]TDCS站机历史信息回放形成一个历史文件的时间周期为( )。
A.每一周 B.每一天 C.每10天 D.每个月 [单选题] 倒闸操作应有与现场实际相符的一次系统模拟图或()。
A. 五防接线图 B. 电子接线图 C. 后台系统图 D. 设备系统图 [判断题]正线运营时，司机应尽可能将列车运行至前方站，如不能到达前方站应尽可能在平直线路上停车。
A.正确 B.错误 我来回答: 提交
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