更多“乙丙橡胶采用密炼机混炼时装胶容量可比其它胶料高（）”相关的问题
财政赤字可以通过发行国债和银行借款两种方式来弥补，发行国债对国内需求总量不会产生影响。( )
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无地下水的密实、中密的砂土和碎石类土（充填物为砂土）允许土壁无支撑的垂直挖深为（）。
A.1.0m
B.1.25m
C.1.5m
D.2.0m
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下列不是急性尿潴留机械性病因的是
A．尿道异物B．膀胱颈挛缩C．尿道结石D．前列腺增生E．腰麻术后
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母乳喂养的好处有（）
A.能满足婴儿6月龄内所需要的全部液体、能量和营养素。 B.母乳有利于肠道健康微生态环境建立和肠道功能成熟，降低感染性疾病和过敏发生的风险。 C.母乳喂养营造母子情感交流环境，给婴儿最大安全感，有利于婴儿心理行为和情感发展。 D.母乳喂养有利于避免母体产后体重滞留。
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For some time past it has been widely accepted that babies and other creatures learn to do things because certain acts lead to' rewards'; and there is no reason to doubt that this is true. But it used also to be widely believed that effective rewards, at least in the early stages, had to be directly related to such basic physiological 'drives' as thirst or hunger. In other words, a baby would learn if he got food or drink or some sort of physical comfort, not otherwise. It is now clear that this is not so. Babies will learn to behave in ways that produce results in the world with no reward except the successful outcome. Papousek began his studies by using milk in the normal way to 'reward' the babies and so teach them to carry out some simple movements, such as turning the head to one side or the other. Then he noticed that a baby who had had enough to drink would refuse the milk but would still go on making the learned response with clear signs of pleasure. So he began to study the children's responses in situations where no milk was provided. He quickly found that children as young as four months would learn to turn their heads to right or left if the movement 'switched on' a display of lights-and indeed that they were capable of learning quite complex turns to bring about this result. For instance, two left or two right, or even to make as many as three turns to one side. Papousek's light display was placed directly in front of the babies and he made the interesting observation that sometimes they would not turn back to watch the lights closely although they would 'smile and bubble ''when the display came on. Papousek concluded that it was not primarily the sight of the lights which pleased them, it was the success they were achieving in solving the problem, in mastering the skill, and that there exists a fundamental human urge to make sense of the world and bring it under intentional control.According to the author, babies learn to do things which ______. ( )A．are directly related to pleasureB．will meet their physical needsC．will bring them a feeling of successD．will satisfy their curiosity
A.B.C.D.AccordingE.areF.willG.willH.will
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急性根尖周炎浆液期的临床症状如下，除外（）
A.持续自发痛
B.患牙浮出感
C.温度测无反应
D.患牙能明确定位
E.咬紧牙时痛加重
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剖宫产手术时肠道受到刺激，胃肠道正常功能被抑制，肠蠕动相对减慢，如多食会使（）代谢物增多。
A.体内
B.腹内
C.肠内
D.胃内
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与NG-250配套的螺口灯座的型号与规格是E-27。
A.对 B.错
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庄子继承和发展了老子思想，故历史上老庄并称，道家思想又称为老庄思想。
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氧气管线的安装应远离（）。
A、氮气管线
B、工厂风管线
C、乙烯管线
D、仪表风管线
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下列除哪一首方剂外，均可用于治疗湿热发黄（）
A . 茵陈蒿汤
B . 大黄硝石汤
C . 小建中汤
D . 栀子大黄汤
E . 茵陈五苓散
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设A，B均是3×4矩阵，AX=0有基础解系ξ1，ξ2，ξ3，BX=0有基础解系η1，η2．若AX=0的基础解系为ξ1=[1，-1，2，4]T，ξ2=[0，3，1，2]T，ξ3=[1，-2，2，0]T．BX=0的基础解系为η1=[3，0，7，14]T，η2=[2，1，5，1 0]T，求AX=0和BX=0的非零公共解．
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运用SWOT分析法分析企业的优势与劣势时，主要用的是（）
A.头脑风暴法
B.小组座谈法
C.预测分析法
D.价值链分析法
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以资本积聚的方式扩大个别资本的规模，是通过( )。 A．许多分散小资本的集合 B．大资本对中小资本的吞并 C．个别资本的资本积累 D．组织股份公司
A.许多分散小资本的集合
B.大资本对中小资本的吞并
C.个别资本的资本积累
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