扑米酮结构中有酰胺，苯环和单取代苯作为红外光谱的主要特征峰，应是-我要搜题网

[单项选择]Purchasing the new production line will be a profitable deal for the company.
A. beneficial
B. tremendous
C. forceful
D. favorable

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[简答题]男方护理假是多少天？

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[单项选择]Young John showed no consistency when he did excellent work the first part of the year and very poor work after that.

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[多项选择]输卵管癌的“三联征”是指( )
A. 绝经后出血
B. 腹痛
C. 盆腔包块
D. 接触性出血
E. 阴道排液

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[单项选择]需要使用装载加固装置和加固材料的货物，应按规定对装载加固装置和加固材料的数量、（）、规格进行检查。
A. 材质
B. 质量
C. 外形
D. 外观

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[单项选择]电动机正常运行时，电流不能（）额定电流。
A. 大于
B. 等于
C. 小于

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[填空题] It is evident that high degrees of mobility can have strongly negative effects on society as a whole. Social scientists emphasize that, in our 【B1】 mobile society, there is also an 【B2】 neglect of the maintenance of 【B3】 quality — a disregard that seems to 【B4】 from a lack of performance and a attachment to place. The 【B5】 home has become, for millions of Americans, a 【B6】 place, no longer the base of successive 【B7】 . The tightly knit fabric of neighborhoods has become 【B8】 . it is not usual for people to be 【B9】 to those living on the same block or even 【B10】 door. Impermanence, transience, and uncertainty 【B11】 the length of stay in any particular place) have 【B12】 people’’s responsibility for the 【B13】 of their homes and neighborhoods, investment values, however. Even more serious is the impact of out-migration 【B14】 neighborhoods and whole urban areas 【B15】 by substantial numbers of their inhabitants. The 1980 U.S Census 【B16】 large population declines for the country’’s north
A. A．around
B．beside
C．near
D．next

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[单选题]急性肾衰竭患者，静脉应用碳酸氢盐指征是
A.实际碳酸氢盐小于15mmol/L
B.实际碳酸氢盐小于17.1mmol/L
C.实际碳酸氢盐小于17mmol/L
D.实际碳酸氢盐小于20mmol/L
E.实际碳酸氢盐小于13.5mmol/L

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[单选题]某公司预期3个月后须买入大豆500吨，目前市场现货价格为2010元/吨，为了避免将来现货价格可能上涨，现在该公司买入10手3个月后到期的大豆期货合约，50吨/手，成交价为2022元/吨。3个月后，该公司以2025元/吨购入500吨大豆，并以2030元/吨的价格将期货合约平仓。在不考虑佣金和手续费等的情况下，则该公司套期保值的净损益为（　　）元。
A.-4000
B.-3500
C.3500
D.4000

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[单项选择]

　　20××年××月××日，某镇煤矿发生瓦斯爆炸事故，事故死亡29人。
该煤矿上年产量3万t，税利60万元，企业上年平均职工人数105人，企业上年工日数300天，这次事故因人身伤亡所支出的费用是640万元，善后处理费用是130万元，财产损失价值达280万元，停产、减产损失价值20万元，资源损失价值30万元。
根据以上情形回答下列问题(1～5题为单选题，只有一个正确的答案。6～8题为多选题，有两个或两个以上的正确答案。)

如果该煤矿上年全年的经济损失是25.6万元，则该煤矿上年的千人经济损失率是( )。
A. 0.24
B. 13.6
C. 24.4
D. 243.8
E. 381.4

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[单选题]根据《危规》规定，铁路运输危险货物按其主要危险性和运输要求划分（）类。
A.十类
B.九类
C.八类
D.七类

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[填空题]大曲通过贮存达到（）、（）___的效果。

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[单选题]以下哪一项不属于“十四五”期间上海地铁将面临的外部环境变化?()。
A.以运营为主的工作重心变化
B.行业管理更为规范严格
C.城市发展新任务
D.乘客对地铁出行服务需求的变化

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[多选题]带电断低压空载电缆引线作业中，工作人员对电缆引线放电，以下说法正确的是（）。
A.应在工作负责人（监护人）的监护下进行
B.使用放电杆逐相对低压电缆进行放电
C.放电杆接地极应连接可靠
D.若选用临时接地极，地线钎深度应不小于500mm

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[单选题] 中级讲师工作时间段授课课时费为( )
A.30元/小时
B.50元/小时
C.75元/小时
D.100元/小时

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[单选题] 支气管扩张大咯血患者最危险最常见的并发症是( )
A.严重贫血
B.休克
C.窒息
D.继发感染
E.气胸

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[单选题]动车组列车车窗玻璃破损影响车厢气密性时，司机接到（）要求限速运行时，要严格控速运行，并及时报告列车调度员；在具备条件的车站更换车底。
A.列车长
B.随车机械师
C.乘警
D.客调

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[单选题] 施工监理单位与施工单位之间是( )关系。
A. 业务配合
B. 监理与被监理
C. 委托与被委托
D. 监督与被监督

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[单项选择]

Britain was a wealthy (富裕的) country. A hundred and fifty years (36) , there were a (37) very rich people (38) received money from land or investments, and did not need to work. They used to have large (39) of servants to look (40) them. There were al so many middle class people, who worked as businessmen or as doc tots or lawyers. They usually had several servants to (41) their houses and cook their meals.
But there were also many poor people, and there was a big (42) between the rich and the poor.
The poor had very difficult lives. Many worked as servants. They used to be (43) little, and they had to work long hours. But at least they lived in a warm house and were well (44)
(45) who worked in factories were often less (46) . They used to work many hours a day, in dangerous and unhealthy conditions. But, even so, they did not use to (47) enough to feed their families. The
A. which
B. who
C. whose
D. what