研究生类
公务员类
工程类
语言类
金融会计类
计算机类
医学类
研究生类
专业技术资格
职业技能资格
学历类
党建思政类
公共课
公共课
专业课
全国联考
同等学历申硕考试
博士研究生考试
英语一
政治
数学一
数学二
数学三
英语一
英语二
俄语
日语
offshore drilling
进入题库练习
欧洲联盟
进入题库练习
经济全球化
进入题库练习
《第二语言习得概论》
进入题库练习
廉租房
进入题库练习
Further ahead, by a combination of the great wealth this new age will bring and the technology it will provide, the construction of a vast, man-created world in space, home to thousands or millions of people, will be within our power.(Paragraph 3, Passage Two)
进入题库练习
全民健身
进入题库练习
be exposed to
进入题库练习
丝路基金
进入题库练习
三农问题
进入题库练习
Scientists Shed New Light On The Body" s Rhythms Have you ever suffered from jet-lag, the fatigue and depression that comes from long hours spent in a jet aircraft traveling across the world over many time zones? Or like many people in northern European countries, have you ever suffered the dark depression of winter blues, the feelings of gloom that comes from facing the somber December and January winter days under dark, cloudy skies? Maybe all you need is a little light—and merely on a small patch of your skin. In fact, in experiments investigating the effect of light in raising our spirits, American scientists have done all their research using light played on the back of the subjects" knees. What could be a key to jet-lag and winter blues is the hormone melatonin, which is known to regulate body rhythms. It is secreted as night falls and it can be used to help to overcome jet-lag and some sleep disorders. The low level of melatonin we experience in winter when light is dull and daylight hours are shorter is said to be cause of that common feeling many people get in dull weather—winter depression. For years experts have experimented with treating jet-lag and seasonal affective disorder ( " winter depression" ) with light. They counsel victims to sit in front of lights simulating the sun" s natural wavelengths to restore melatonin. In 1996, Diane Boivin and colleagues at Harvard Medical School found even dim reading lamps worked in this way. Exposure to light sets off a complex response inside the bodies of animals and humans. A university team in New York said they had found that shining light on the skin could reset the body" s internal clock. They chose the back of the knee because it was easy to reach and away from the eyes, which is where many scientists had believed circadian rhythm is determined.
进入题库练习
B汉译英/B
进入题库练习
化石发现 正当今日中国的面貌被现代化和经济改革改变的时候,中国的科学家却在发掘远在人类出现以前古代的一些遗迹。 中国东北辽宁省被证实埋藏有丰富的古化石。在这些令人惊奇的发现中有一种被称作“中华龙鸟”的古生物,可能有着史前恐龙与现代鸟类之间的基因联系;还有迄今为止所发现的最占老的两栖类动物化石,一棵古老的果树残余以及世界上最古老的花。 毫不奇怪,辽宁省现在吸引了世界各地许多杰出的研究人员。这里发现的化石为深入研究地球这一行星的历史提供了激动人心的新视角。
进入题库练习
国债
进入题库练习
Chic
进入题库练习
高科技竞争的负面影响 市场经济下的公平竞争是促进经济繁荣的重要因素,但竞争过了头,则其负面影响就不容忽视。 在剧烈竞争下,市场需要往往会让位于竞争需要。各高科技公司不得不投下巨额资金发展新项目,还得避开知识产权纠纷。结果是改头换面,换汤不换药的技术和产品成堆。抢不到市场则损失惨重。 一些大公司为了保住自己的垄断地位,常常制造一些假象,小公司往往被误导而争先恐后地去跟风,最后陷入困境,幸运的被合并,倒霉的破产。
进入题库练习
中美两国的社会制度和对外政策有着本质的区别。但是,双方同意,各国不论社会制度如何,都应根据尊重各国主权和领土完整、不侵犯别国内政、平等互利、和平共处的原则来处理国与国之间的关系。国际争端应在此基础上予以解决,而不诉诸武力威胁。美国和中华人民共和同准备在他们的相互关系中实行这些原则。 双方回顾了中美两国之间长期存在的严重争端。中国方面重申自己的立场:台湾问题是阻碍中美两国关系正常化的关键问题;中华人民共和国政府是中国的惟一合法政府;台湾是中国的一个省,早已归还祖国;解放台湾是中国内政,别国无权干涉;全部美国武装力量和军事设施必须从台湾撤出。中国政府坚决反对任何旨在制造“一台一中”、“一个中国、两个政府”、“两个中国”、“台湾独立”和鼓吹“台湾地位未定”的活动。 美国方面声明:美国认识到,在台湾海峡两岸的所有中国人都认为只有一个中国,台湾是中国的一部分。美国政府对这一立场不提出异议。它重申对中国人民和平解决台湾问题的关心。考虑到这一前景,它确定从台湾撤出全部美国武装力量和军事设施的最终目标。在此期间,它将随着这个地区紧张局势的缓和逐步减少它在台湾的武装力量。
进入题库练习
改革红利
进入题库练习
In this part you are required to write an essay about the topic Success Depends on Teamwork. You should write about 120 words. Success Depends on Teamwork
进入题库练习
Each year we come together to reaffirm the founding vision of this institution. For most of recorded history, individual aspirations were subject to the whims of tyrants and empires. Divisions of race and religion and tribe were settled through the sword and the clash of armies. The idea that nations and peoples could come together in peace to solve their disputes and advance a common prosperity seemed unimaginable. It took the awful carnage of two world wars to shift our thinking. The leaders who built the United Nations were not naive; they did not think this body could eradicate all wars. But in the wake of millions dead and continents in rubble, and with the development of nuclear weapons that could annihilate a planet, they understood that humanity could not survive the course it was on.
进入题库练习