| The growth of population during the
past few centuries is no proof that population will continue to grow straight
upward toward infinity and doom. On the contrary, demographic history offers
evidence that population growth has not been at all constant. According to
paleo-ecologist Edward Deevey, the past million years show three momentous
changes. The first, a rapid increase in population around one million B, C,
followed the innovations of tool-making and tool-using. But when the new power
from the use of tools had been exploited, the rate of world population growth
fell and became almost stable. The next rapid jump in population started perhaps 10,000 years ago, when men began to keep herds, plow and plant the earth. Once again when initial productivity gains had been absorbed, the rate of population growth abated. B. Population growth has shown fluctuation in demographic history. C. Population growth can not be regarded as a social failure. D. Increase in population is related to productivity. [多项选择]丁先生是否可以请求酒店赔偿，其请求赔偿的依据是什么( )
A. 可以请求赔偿 B. 不得请求赔偿 C. 因为只要在保管期间被保管的物品丢失，保管人就应当负损害赔偿责任 D. 因为在保管期间被保管的物品丢失且可以证明系保管人保管不善所致，保管人应当负损害赔偿责任 [单项选择]当事人一方不履行仲裁裁决时，另一方当事人可以依照《中华人民共和国民事诉讼法》的有关规定( )。
A. 向上级仲裁机构申请执行 B. 向人民法院申请执行 C. 向首席仲裁员申请执行 D. 向人民法院起诉 [单选题]（）是安全生产领域的综合性基本法，它是我国第一部全面规范安全生产的专门法律。
A.安全生产法 B.环境保护法 C.建筑法 [单选题]录用空中警察应当按照国家有关规定进行公开考试，严格考核，择优录用。担任空中警察应当具备的条件包括（ ）。
A.年满十八周岁的中国公民 B.家长愿意其从事空中警察工作 C.身体健康 D.具有初中毕业以上文化程度 [多选题]（ ）等开路作业时，应使用短接线先行短接，设置短接线时不得影响轨道电路。
A.修补支柱 B.更换火花间隙 C.检修支柱下部地线 D.避雷引下线 E.处理异物 [单选题]中国梦是和平、发展、（）的梦。
A.绿色、健康 B.协调、统一 C.合作、共赢 [单选题]活泼金属跟活泼非金属化合时都能形成()。
A.离子键 B.共价键 C.金属键 [单项选择]哺乳类动物体内氨的主要去路是
A. 渗入肠道 B. 在肝中合成尿素 C. 经肾泌氨随尿排出 D. 生成谷氨酰胺 E. 合成氨基酸 我来回答: 提交
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