更多“对于该患者，现场急救的首要步骤是（）”相关的问题
如果债务人的违约风险较高，则他需要支付较高的违约风险补偿，其融人资金的利率成本就会相应（）
A.提高
B.降低
C.不变
D.无法表示
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现代地理学、地图学的重要奠基人（）于1512年3月出生于佛兰德的鲁珀尔蒙德。
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建设用地项目呈报材料“一书四方案”包括：建设项目用地呈报说明书，农用地转用方案、补充耕地方案、征地方案和供地方案。（ ）
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用以防止管路内介质倒流的是（）.
A.减压阀
B.节流阀
C.止回阀
D.切断阀
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与市场组合相比，夏普指数高表明（ ）。 A. 该组合位于市场线上方，该管理者比市场经营得好 ###SXB#
与市场组合相比，夏普指数高表明（ ）。
A. 该组合位于市场线上方，该管理者比市场经营得好
B. 该组合位于市场线下方，该管理者比市场经营得好
C. 该组合位于市场线上方，该管理者比市场经营得差
D. 该组合位于市场线下方，该管理具有中等绩效
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请阅读下面的代码 String s1=new String(“abc”); String s2=s1.intern(); String s3=”abc”; System.out.println(s1==s2); System.out.println(s2==s3); System.out.println(s1==s3); 下列选项中,程序的输出结果为()
A. falsetruefalseB. falsefalsefalseC. falsetruetrueD. falsefalsetrue
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一般加氢分馏系统只设置分馏重沸炉循环泵流量低低联锁和主火嘴、长明灯压力低低熄炉联锁以及手动停炉联锁。（）
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门窗三性检测结果的评定有（）。
A.变形检测的评定 B.反复加压检测的评定 C.定级检测的评定 D.工程检测的评定 E.三试件综合评定
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Do not dictate to your author; try to become him, be his fellow－worker and accomplice.不要对作者指手画脚，而要尽力与作者融为一体，共同创作，共同策划。()
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在LAC曲线与一条代表最优生产规模的SAC曲线相切的产量上必定有____?
A. 相应的LMC曲线和代表最优生产规模的SMC曲线的一个交点,以及相应的LTC 曲线和代表最优生产规模的STC曲线的一个切点B. 代表最优生产规模的SAC曲线达最低点C. LAC曲线达最低点D. 以上说法都不对
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We all admire the beautiful blue of a clear sky or the superb contrast between the brilliant white of the clouds and the skyblue between them. This colour, however, is not natural in the atmosphere; it is an optical effect(光学效应). When light encounters a cloud of small particles, it is diffused. This may be illustrated by a familiar example. When sunlight enters a darkened room through a gap in the blinds, it will appear as a brilliant ray of light. This is because there are tiny particles of dust suspended in the air. These, although normally invisible, catch and diffuse any strong light shining on them. The same effect can be seen in the sky when broken clouds hide the sun. Thus we can see that diffusion occurs owing to all sorts of impurities in the atmosphere. This explains all the delightfully varied shades of colour seen at different times of the day. White light is a mixture of all the colours of the rainbow or spectrum (光谱) , which, as Isaac Newton proved, can be separated by a prism. In order, they are red, orange, yellow, green, blue, violet, and they are all to be found in the solar spectrum. Red light has the longest wavelength and violet the shortest but diffused approximately sixteen times more strongly than red. The size of the particles is important. Impurities such as dust and water droplets are much larger than the molecules of gas. In the lower parts of the atmosphere where most of these impurities are concentrated, the sky is different from what it is at heights where no impurities exist. A simple observation will demonstrate this principle. Examine the smoke from a cigarette before and after it has been inhaled. At first the smoke will be plainly bluish since it is made up of very minute particles; after it has been inhaled and then puffed out through the mouth, it will be yellowish because it now contains water droplets which have condensed round the particles and which are much more efficient diffuse of light. This is why the color of the sky is much more intense and dark blue when seen from the top of a mountain than from sealevel. In the first place there is an almost complete absence of water vapour and, more important, dust. Secondly, we are above the thickest portions of the atmosphere, and this naturally has the most powerful diffusing effect. The color of the sky varies from horizon to zenith (天顶) , since there is a different thickness of air in these two directions. The horizon always appears lighter, more whitish or even reddish, according to the state of the atmosphere. All this, incidentally, also intensifies the illusion of being under a great dome—the celestial roof.
A．the amount of lightB．the condition of the atmosphereC．the time of the dayD．the thickness of air
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矿粉筛分试验使用的主要检测设备（）
A . A.标准筛0.6mm、0.3mm、0.15mm、0.075mm
B . B.天平感量不大于0.1g
C . C.烘箱温度能控制在105℃±5℃
D . D.烘箱温度能控制在180℃±5℃
E . E.搪瓷盘
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丁螺环酮的主要药理作用是：（）
A.阻断D2受体
B.阻断5-HT1A受体
C.抑制突触前膜5-HT的回收
D.激动5-HT1A受体
E.阻滞NE的再摄取
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