更多“在Windows中，当打开若干个应用窗口时，其中当前窗口是（”相关的问题
无线通信为什么要用高频信号？“高频”信号指的是什么？
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下列属于合理信念的是()
A . A．学习取得的成就必须得到家长和老师的认可
B . B．像你希望别人对你那样对待别人
C . C．学习是自己的事，别人无权过问
D . D．事不关己高高挂起
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泰勒提出的著名的科学管理原则包括（）
A . 建立真正科学的劳动过程
B . 工人必须经过科学的选拔
C . 最理想的效果
D . 管理者和工人之间亲密的经久合
E . 将经过科学挑选和训练的工人与科学的劳动过程相结合
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TEXT C The relationship between the home and market economies has gone through two distinct stages. Early industrialization began the process of transferring some production processes (e. g. cloth-making, sewing and canning foods) from the home to the marketplace. Although the home economy could still produce these goods, the processes were laborious and the market economy was usually more efficient. Soon, the more important second stage was evident-the marketplace began producing goods and services that had never been produced by the home economy, and the home economy was unable to produce them (e. g. electricity and electrical appliances, the automobile, advanced education, sophisticated medical care). In the second stage, the question of whether the home economy was less efficient in producing these new goods and services was irrelevant. If the family were to enjoy these fruits of industrialization, they would have to be obtained in the marketplace. The traditional ways of taking care of these needs in the home, such as in nursing the sick, became socially unacceptable (and, in most serious cases, probably less successful). Just as the appearance of the automobile made the use of the horse-drawn carriage illegal and then impractical, and the appearance of television changed the radio from a source of entertainment to a source of background music, so most of the fruits of economic growth did not increase the options available to the home economy to either produce the goods or services or purchase them in the market. Growth brought with it increased variety in consumer goods, but not increased flexibility for the home economy in obtaining these goods and services. Instead, economic growth brought with it increased consumer reliance on the marketplace. In order to consume these new goods and services, the family had to enter the marketplace as wage earners and consumers. The neoclassical model that views the family as deciding whether to produce goods and services directly or to purchase them in the marketplace is basically a model of the first stage. It cannot accurately be applied to the second (and current) stage.
A．the family was not efficient in productionB．it will be illegal for the home economic to produce themC．it could not supply them by itselfD．the market for these goods and services was limited
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肾上腺素受体激动剂的构效关系包括
A. 具有β-苯乙胺的结构骨架B. β-碳上通常带有醇羟基，其绝对构型以S构型为活性体C. N上取代基对α和β受体效应的相对强弱D. 有显著影响苯环上可以带有不同取代基
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国务院哪一年发布《促进大数据发展行动纲要》?()
A.2012
B.2013
C.2014
D.2015
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5. 如果有经验的麻醉医师反复插管不能成功，患者还能进行面罩通气，则下一步应采取的措施有
A.唤醒患者
B.继续试插
C.使用纤维支气管镜
D.在面罩或喉罩通气下进行麻醉
E.在尚能面罩通气时，进行气管切开或环甲膜切开建立外科气道
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患者女，23岁。凹面型，面下1／3正常，前牙反，磨牙中性关系，上颌尖牙唇向高位，拥挤9mm。上下前牙唇倾度正常，下牙列无拥挤。侧位片测量显示上颌骨发育不足，ANB－2°。4个第三磨牙牙胚存在。治疗结束后上前牙的位置和唇倾度应为（）
A.与治疗前一样
B.位置前移，较治疗前更唇倾
C.位置前移，较治疗前更舌倾
D.位置后移，较治疗前更唇倾
E.位置后移，较治疗前更舌倾
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Command对象的ExecuteReader方法返回一个DataReader对象,该对象是一个双向的只读数据流。
A. 对B. 错
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柴油机起动后，应首先注意润滑油压力表，如在()内压力尚未建立，应立即停车检查。
A . 5s
B . 10s
C . 15s
D . 20s
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教学过程应该具有如下功能：探索知识、（）、培养智能和（）。教学过程有如下的特点：（）、认知性和实践性。
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4.1. 2 9 . 渐开线直齿圆柱齿轮正确啮合条件是两齿轮模数相等和压力角相等。
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SY/T5317规定，所有用于连接防爆等级区域内自动取样装置的电子元件，应符合相应的国家（）规范。
A . 计量
B . 安全
C . 防爆
D . 安全
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下列经济业务中引起资产和负债同时增加的有（ ）。A.赊购材料B.从银行提取现金C
下列经济业务中引起资产和负债同时增加的有（ ）。 A.赊购材料 B.从银行提取现金 C.用银行存款购入各种材料 D.将银行借款存入银行 此题为多项选择题。请帮忙给出正确答案和分析，谢谢！
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在“沉默的螺旋过程”中，大众传媒以什么样的方式对公众产生影响？（）
A.对何为主导意见形成印象
B.对何种意见正在增长形成印象
C.对何种意见可以公开发表而不会遭受孤立形成印象
D.以上都是
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题目内容
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参考答案
十点题库官方参考答案
（由十点题库聘请的专业题库老师提供的解答）
