According to airline industry statistics, almost 90% of airline accidents are not survivable or partially survivable. But passengers can increase their chances of survival by learning and following certain tips. Experts say that you should read and listen to safety instructions before takeoff and ask questions if you have uncertainties. You should fasten your seat belt low on your hips and as possible. Of course, you should also know how the release mechanism of your belt operates. During takeoffs and landings you are advised to keep your feet fiat on the floor. Before takeoff you should locate the nearest exit and an alternative exit and count the rows of seats between you and the exits so that you can find them in the dark if necessary.
In the event that you are forewarned of a possible accident, you should put your hands on your ankles and keep your head down until the plane comes to a complete stop. If smoke is present in the cabin, you should keep your head low and c
A. ask question about safety during the flight
B. jump in any circumstances
C. carry personal belongings in an emergency
D. locate the nearest exit
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{{B}} Middle Age: A Low Point for Most{{/B}} People around the globe hit the height of their misery and depression in{{U}} (51) {{/U}}age, a new international study suggests. The finding by British and American researchers was based on an analysis of well-being among approximately 2 million people in 80 nations. With few exceptions, the observation appears to apply across the board, regardless{{U}} (52) {{/U}}gender (性别), culture, geography, wealth, job history, education, and marriage or parental status. "The scientific fact seems to be that happiness and positive mental health follow a giant ’U’ {{U}} (53) {{/U}}through life," said study author Andrew J. Oswald, a professor of economics at Warwick University in Warwi A. race B. gender C. education D. income [单选题]生产经营单位的特种作业人员必须按照国家有关规定经专门的安全作业培训，取得特种作业（ ）后，方可上岗作业
A.技能合格证 B.培训上岗证 C.操作资格证书 [单项选择]运用成本法评估房地产抵押价值时，按谨慎原则要求，在估计房地产价格构成项目的金额可能会在一定区间波动时，应采用( )的估计值。
A. 正常 B. 较低 C. 平均 D. 较高 [单项选择]在建设项目竣工决算中，工程建设的经验及项目管理和财务管理工作以及竣工财务决算中有待解决的问题体现在( )中。
A. 竣工决算报告情况说明书 B. 竣工财务决算报表 C. 建设工程竣工图 D. 工程造价比较分析 [填空题]年龄在35周岁及以下的小组长，必须具备（）。
[单选题]一位在华美国人士在评论近代中国的一部著作时说：“它是因中英战争刺激而产生的一部成果。我们认为它将极大地摧毁傲慢心态，驱散中国统治者和学究们的愚昧无知，证明他们所属的并非地球上的唯一一个国家。”该著作的作者是( )。
A.姚莹 B.徐继畲 C.郑观应 D.严复 [多选题]临时用电设施应做到“一机一闸一保护”,( )安装符合规范要求的漏电保护器。
A.仪器; B.开关箱; C.移动式; D.手持式电动工具。 [判断题]监护人在监护时应自始至终集中精力监护，不得从事与监护无关的其他工作。
A.正确 B.错误 [判断题]上道作业人员工作前应充分休息，不得饮酒，严格执行规章制度，遵守两纪，作业中注意瞭望，及时下道避车，确保行车和人身安全。
A.正确 B.错误 [单项选择]∑Wn表示的意思是（ ）。
A. 设备和产品的能耗量 B. 设备系统的综合能耗量 C. 操作人员非正常操作浪费的能耗量 D. 运输、保管及其他非正常消耗量 我来回答: 提交
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