| Questions 11-15 are based on the following
passage: Although no one is certain why migration occurs, there are several theories. One theory claims that prehistoric birds of the Northern Hemisphere were forced south during the Ice Age. As the glaciers melted, the birds came back to their homelands, spent the summer, and then went south again as the ice advanced in winter. In time, the migration became a habit in spite of the disappearance of glaciers. Another theory proposes that the ancestral home of all modern birds was the tropics. When the region became overpopulated, many species were crowded north. During the summer, there was plenty of food, but during the winter, scarcity forced them to return to the tropics. A more recent theory suggests a relationship between increasing daylight and the stimulation of certain glands (腺) in A. exact reasons for migration are not known B. birds migrate because of changes in temperature C. the ancestral home of all birds was the tropics D. glaciers caused birds to migrate [判断题]控制系统时间常数越小，被控变量响应速度越快，则可提高调节系统的稳定性。( )
A.正确 B.错误 [单选题]连队职工身份地经营权流转合同一般包括哪以下内容( )
A.双方当事人的姓名、住所、联系方式等 B.流转身份地的名称、面积、坐落(四至)、等级、是否永久基本农田等 C.流转的方式、期限和起止日期 D.流转身份地可改变承包合同规定的用途 [填空题]结构件的装配，不论采用什么方法，都应具有三个要素――（）、（）和（）。
[判断题]在电缆沟等有限空间作业，应在作业入口设专责监护人，坚持“先通风、再检测、后作业”的原则，保持通风良好。
A.正确 B.错误 [单项选择]标准的美国短期国库券期货合约的面额为100万美元，期限为90天，最小价格波动幅度为一个基点（即0.01%），则利率每波动一点所带来的一份合约价格的变动为（）。
A. 25美元 B. 32.5美元 C. 50美元 D. 100美元 [多选题] 下列监室属于重点监室的是()。
A. 过渡监室 B. 未成年监室 C. 老弱病残监室 D. 单独关押监室 [单选题]员工应在公司制度许可范围内报销费用。任何（ ）不得进行报销。
A.实际发生的费用 B.未实际发生的费用、或任何非业务原因发生的费用 C.业务原因产生的费用 D.费用 [单选题]维修天窗在时间安排上应与施工天窗重叠套用，除春运、节假日及铁道部调度命令停止外，原则上每月每区间不应少于（）次(双线为单方向)。
A.24 B.22 C.20 我来回答: 提交
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