| 考研每日一练（2019/1/5） |
| 第1题： It can be inferred from Paragraph 4 that ______. A．human behavior is confined to the exclusive concern of psychologists. B．economists' utility is only the explanations for random acts of kindness. C．altruism is developed during the long process of human evolution. D．biologists can help economists explain some human behavior deviations. |
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| 第2题：在我国自治条例是指( )。
A．一般行政区人民代表大会制定的有关区域自治问题的规范性文件 B．民族自治地方人民代表大会制定的有关区域自治问题的规范性文件 C．经济特区制定的有关区域自治问题的规范性文件 D．特别行政区立法会制定的有关区域自治问题的规范性文件 |
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| 第3题：我国成人肠梗阻最常见的原因是
A．肠扭转 B．腹内疝 C．肠粘连 D．肠套叠 |
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| 第4题：When stars like our Sun die, they bloat to become red giants and then eject gigantic clouds of gas and dust into space. Increasingly, however, scientists found themselves at a profound loss to explain how exactly dying stars could blow away these clouds. Now astrophysicists propose that unexpected chemical reactions during the formation of stardust could help solve this mystery. Stars smaller than the Sun and up to eight times as massive die by swelling up into red giants before shedding most of their mass to shrink into very compact, dying embers (灰烬) called white dwarfs. Two kinds of red giants exist-those with lots of carbon, and others richer in oxygen than in carbon.Carbon-rich stars release carbon particles during their death throes. Scientists proposed these pitch-black grains absorb rays from the dying star and get shot into space by starlight, a theory that fit both the observations and computer models. Increasingly, however, researchers could not explain how oxygen-rich stars like our own Sun could propel their clouds away during the final stages of mass loss. Oxygen-rich stars create large quantities of water vapor and silicates, such as quartz (石英砂) or sanD、These are transparent, meaning starlight should go right through them. Possible solutions have been contemplated by scientists. They first pondered whether the silicates might have iron in them, which would render them opaque instead of transparent.But calculations showed the dust grains would have evaporated if they had iron in them. They next wondered if enough molecules surrounded the core of a dying oxygen-rich star to block out its light and thus create a wind that blew the star’s outermost layer into space.But their models suggested these molecules could not block off enough light and create strong enough Rinds. The scientists then suggested that pulsations occurred when stars die could perhaps force a star’s matter out, but this idea did not match with astronomers’ observations.But inspiration then dawned upon them. Perhaps some of the carbon in the oxygen-rich stars could help force the outer layers of the stars into space. They believe shock waves from the pulsations of dying stars could make carbon in oxygen-rich stars form pitch-black dust. "The theory fits with all our subsequent model calculations, and it matches observations from dying oxygen-rich red giants". Moreover," this mechanism strongly favors the presence of magnesium silicates over iron silicates in the interstellar medium," in agreement with recent findings from NASA’s comet-sampling Stardust space probe. If proven correct, the beauty of the new scenario is that it suggests a common driving mechanism for many dying stars shedding their mass via dusty winds," with possible long-reaching consequences for the origin of chemical elements relevant for life.\ Which of the following is true of the textA．There are more than two types of red giants. B．Carbon-rich star releases carbon when it dies. C．Stardust mainly consists of carbon, iron and silicon. D．Star reposes during the process of death. |
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| 第5题：“寒热”是
A．辨病因的纲领 B．辨虚实的纲领 C．辨病位的纲领 D．辨病性的纲领 |
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| 第6题：患者进行性吞咽困难5个半月，伴背痛。钡餐示食管中段黏膜破坏伴狭窄约6 cm，欲了解肿瘤外侵情况，哪一种方法较好
A．食管镜检查 B．放射性核素检查 C．胸部X线 D．B超检查 E．胸部CT |
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| 第7题：下列哪种情况可使肥厚型心肌病的心脏杂音减弱
A．给予洋地黄 B．静脉滴注异丙基肾上腺素 C．口服普萘洛尔 D．做Valsalva动作 |
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| 第8题：学校教育对人的发展起( )。
A．根本作用 B．主导作用 C．前提作用 D．辅助作用 |
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| 第9题：党的基本路线的实质是
A．中国共产党的领导 B．坚持四项基本原则 C．坚持改革开放 D．以经济建设为中心 |
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| 第10题：下列选项中正确的是
A．赫尔巴特是西方历史上第一位把心理学作为一门独立学科加以研究，并努力建设使之成为一门科学的思想家 B．赫尔巴特将道德教育的目的分为内在目的和外在目的 C．赫尔巴特确定教育过程的顺序是管理、道德教育和教学 D．赫尔巴特提出教学的最根本的目的是要求学生牢固掌握知识和激发学生企图扩充知识的兴趣 |
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