计算题：大巷全长6700米，车辆以25km∕h正常速度行驶，问多长时间-我要搜题网

[不定项选择题]共用题干 Early or Later Day Care The British psychoanalyst John Bowlby maintains that separation from the parents during the sensitive “attachment”period from birth to three may scar a child's personality and predispose to emotional problems in later life.Some people have drawn the conclusion from Bowlby's work that children should not be subjected to day care before the age of three because of the parental sepa-ration it entails,and many people do believe this. But there are also arguments against such a strong conclusion. Firstly,anthropologists point out that the insulated love affair between children and parents found in modern societies does not usually exist in traditional societies.For example,in some tribal societies,such as the Ngoni,the father and mother of a child did not rear their infant a-lone—far from it .Secondly,common sense tells us that day care would not be so widespread to-day if parents,care—takers found children had problems with it. Statistical studies of this kind have not yet been carried out,and even if they were,the results would be certain to be complicat-ed and controversial.Thirdly,in the last decade there have been a number of careful American studies of children in day care,and they have uniformly reported that day care had a neural or slightly positive effect on children's development. But tests that have had to be used to measure this development are not widely enough accepted to settle the issue. But Bowlby's analysis raises the possibility that early day care has delayed effects.The possi- bility that such care might lead to,say,more mental illness or crime 15 or 20 years later can only be explored by the use of statistics.Whatever the long-term effects,parents sometimes find the immediate effects difficult to deal with.Children under three are likely to protest at leaving their parents and show unhappiness.At the age of three or three and a half almost all children find the transition to nursery easy,and this is undoubtedly why more and more parents make use of child care at this time.The matter,then,is far from clear-cut,though experience and available evi- dence indicate that early care is reasonable for infants. Which of the following is derivable from Bowlby's work?
A.Day care would not be so popular if it has noticeable negative effects on a child's personality.
B.A child sent to a day care center before the age of three may have emotional problems in later life.
C.Day care nurseries have positive effects on a child's development.
D.Mothers should not send their children to day care centers before the age of three.

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[判断题]施工作业开通前，当施工作业开通条件与打印好的销记内容一
致时，登销记人员应将销记内容粘贴到《行车设备施工登记簿》内，办理
销记签认手续。
A.正确
B.错误

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[单项选择]活塞环弹性降低或装配对口时对气缸压力的影响是（）
A. 影响大
B. 影响小
C. 没有影响
D. 很大

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[多选题]原被判处十年以上有期徒刑的累犯适用暂予监外执行,有执行刑期限制。但有( )情节的,可以适度从宽。
A. 未成年罪犯
B. 六十五周岁以上的罪犯
C. 六十周岁以上的罪犯
D. 残疾人罪犯

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[单选题]根据《生产安全事故报告和调查处理条例》，10人以下重伤(包括急性工业中毒)的生产安全事故属于（）。
A.一般事故
B.较大事故
C.重大事故
D.特别重大事故

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[单选题]下列关于南京临时政府成立时国内政局的表述,正确的是 ( )
A.全国各省区均已宣布独立
B.清朝皇帝已决定退位
C.革命派掌握了各省的政权
D.袁世凯已掌握了清政府的实权

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[判断题]电e宝转账到别的电e宝账户会收取每笔转账金额0.1%服务费。
A.正确
B.错误

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[单选题]一级动火工作的过程中，应每隔（）测定一次现场可燃气体、易燃液体的可燃蒸汽含量是否合格，当发现不合格或异常升高时应立即停止动火，在未查明原因或排除险情前不准动火。
A.2h～4h
B.2h～5h
C.2h～6h
D.2h～7h

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[单项选择]恒转矩双速电动机的接线方法为下列（）种。
A. 2y/2y
B. 2y/△
C. 2y/y
D. 2△/y

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[简答题]计算题：大巷全长6700米，车辆以25km∕h正常速度行驶，问多长时间能够将急件运输到达目的地？

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