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大学英语议论文范文300字数量

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patrick1

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Clone Technology Thanks to burgeoning technology, the past decades have witnessed the thriving of clone And its application into human has made clone reach an unprecedented This marvel gives rise to much concern among scientific However, whether human cloning should be advocated has aroused heat As far as I am concerned, the merits of human cloning outweigh its On one hand, it’s safe to say that even the best clone technology has the possibility of failure, and this truth is also publicly known by scientific Therefore, human cloning is the indulgence of this Once it fails, it will do harm to cloned From animal cloning experiments, the survival rate of the cloned species is very Unfortunately, these cloned species that have survived often have more or less some physical Nowadays, many researchers have begun to clone a human being, which leads to the birth of disabled infants because of the failure of human cloning These crude phenomena leave us with a They are the evidence of the crime resulting from human cloning and the trample on human In order to succeed, those crazy scientists cruelly kill the lives of many cloned men, which is no doubt crimes rather than Do any rational persons will support a research at the cost of killing people? What is worse, result of this research will bring people with terrible This research is a kind of technological progress that will make man liable to On the other hand, even if the cloning human experiments will succeed, it will also make chaos on civil legal It’s clear that cloned men have no As is known to all, nature persons all have Who are the parents of the cloned men? In fact, cloned men can’t find their parents no matter through which They are only research results of It would be irresponsible to clone a human being, for they will become orphans thoroughly after they are On that circumstance, will those crazy scientists undertake the responsibility of fostering these cloned men? Perhaps no one will It’s incredible to imagine that one will live a happy life that has both physical problems and lower social Who will be willing to educate them? Cloned men are just victims and experimental Technology is a double-edged Used properly, it will be advantageous to the whole Used improperly, it will have great negative On balance I hold on the stance that the scourge of human cloning is To sum up, this technology should be restricted and the government should take effective measures to do with

大学英语议论文范文300字数量

338 评论(8)

RISC-CGK

其实网上发不了这么多。你干脆去买一本“疯狂英语 阅读版”。现在应该是6元一本。里面有散文,小说,话题文章,诗歌,议论的,新闻类型的。反正有许多的。还带有翻译。有些还附带MP3格式。你买那个不错的!
289 评论(15)

lee9328

1 Department of Community Medicine, University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong, China,2 Department of Health, Student Health Service, 4/F Lam Tin Polyclinic, Kowloon, Hong Kong, China,3 Nuffield Department of Clinical Medicine, University of Oxford, Oxford OX2 6HE Introduction Passive smoking can cause death from lung cancer and coronary heart disease, but there is little evidence for associations with other causes of death in never A recent study showed increased all cause mortality with exposure to secondhand smoke at home but did not examine associations with specific causes of death and dose-response 1 We have published estimates of the mortality attributable to active smoking in Hong Kong2 and now present the related findings on passive smoking at Participants, methods, and results Details of the sample selection and data collection have been 2 Each person who reported a death in 1998 at four death registries was given a questionnaire which asked about the lifestyle 10 years earlier of the decedent and of a living person about the same age who was well known to the Passive smoking was identified in the interview with the question, "Ten years ago, in about 1988, excluding the decedent/control, how many persons who lived with the decedent/control smoked" Decedents or controls who lived with one or more smokers were classed as Cause of death was obtained from the death We selected never smoking decedents and controls aged 60 years or over because there were few younger To avoid selection bias, we included only cases and controls who had a living spouse at the time of We used logistic regression to derive odds ratios adjusted for age and education, and for sex when men and women were What is known on this topic There is strong evidence that passive smoking is causally associated with death from lung cancer, coronary heart disease, and all causes, and also with acute stroke What this study adds The dose-response relation between passive smoking and mortality from stroke and chronic obstructive pulmonary disease, as well as from lung cancer, ischaemic heart disease, and all causes of death, strengthens the causal link We identified 4838 never smoking cases (55% male) and 763 never smoking controls (55% male) All controls were used in the analysis for each specific cause of We found significant dose dependent associations between passive smoking and mortality from lung cancer, chronic obstructive pulmonary disease, stroke, ischaemic heart disease, and from all cancers, all respiratory and circulatory diseases, and all causes (table) The association between mortality and passive smoking did not differ between males and Deaths due to injury or poisoning were not associated with passive Number of subjects who were or were not exposed to secondhand smoke at home and odds ratios (adjusted for age and education, and for sex when men and women were combined) for mortality in people aged 60 or over, Hong K Values are odds ratio (95% confidence interval) unless indicated otherwise Comment Dose dependent associations between passive smoking and causes of death are consistent with previous findings for lung cancer and coronary heart disease and extend the evidence on Previous studies have shown associations between passive smoking and first acute strokes,3 4 and we have now shown a dose-response relation with mortality from Previous studies focused on ischaemic strokes but Chinese populations have a greater incidence of haemorrhagic stroke than do white populations,5 implying that many of the strokes in our study may have been non- Passive smoking probably affects all stroke subtypes, as does active Our finding of a 34% increase in all cause mortality is consistent with but higher than that (15%) in the New Zealand 1 Exposure to secondhand smoke at home is higher in Hong Kong than in New Zealand due to crowded living Before the 1990s, awareness of the danger of passive smoking was lower and smokers smoked freely at We focused on passive smoking at home because the proxy reporter could most reliably supply these data, and we adjusted for education, which was also reliably recorded2 and is a good proxy for social class in Hong K As data on cases and controls were derived from the same proxy, reporting bias should be 2 If our results are not due to residual confounding, they provide further evidence that the dose-response associations between passive smoking and stroke and all cause mortality are likely to be See Editorial by Kawachi This article was posted on on 27 January 2005: We thank W L Cheung for help with analysis; the Immigration Department of the Government of the Hong Kong Special Administrative Region for data and assistance; and, in particular, the relatives who provided Contributors: THL, SYH, AJH, KHM, and RP designed and carried out the study on which this analysis was based; SMcG, MS, LMH, and GNT planned and carried out this analysis; and all authors contributed to writing the SMcG and THL are Funding: Hong Kong Health Services Research Committee (#631012) and Hong Kong Council on Smoking and H Competing interests: THL is vice chairman and AJH a former chairman of the Hong Kong Council on Smoking and H Ethical approval: Ethics Committee of the Faculty of Medicine, University of Hong K References Hill SE, Blakely TA, Kawachi I, Woodward A Mortality among never smokers living with smokers: two cohort studies, 1981-4 and 1996- BMJ 2004;328: 988- Lam TH, Ho SY, Hedley AJ, Mak KH, Peto R Mortality and smoking in Hong Kong: case-control study of all adult deaths in BMJ 2001;323: 361- Bonita R, Duncan J, Truelson T, Jackson RT, Beaglehole R Passive smoking as well as active smoking increases the risk of acute Tobacco Control 1999;8: 156- Iribarren C, Darbinian J, Klatsky AL, Friedman GD Cohort study of exposure to environmental tobacco smoke and risk of first ischemic stroke and transient ischemic Neuroepidemiology 2004;23: 38- Kay R, Woo J, Kreel L, Wong HY, Teoh R, Nicholls MG Stroke subtypes among Chinese living in Hong Kong: the Shatin stroke Neurology 1992;42: 985-
276 评论(11)

lei198711

【当一个人连自己的脸面都可以不要的时候,其他的还有什么可以顾及的呢?】 精辟!
115 评论(13)

wsbqa

CYOU In all time before now and in all time to come, there has never been and will never be anyone just like You are unique in the entire history and future of the Wow! Stop and think about You're better than one in a million, or a billion, or a You are the only one like you in a sea of infinity! You're amazing! You're awesome! And by the way, TAG, you're As amazing and awesome as you already are, you can be even more Beautiful young people are the whimsey of nature, but beautiful old people are true works of But you don't become "beautiful" just by virtue of the aging Real beauty comes from learning, growing, and loving in the ways of That is the Art of L You can learn slowly, and sometimes painfully, by just waiting for life to happen to Or you can choose to accelerate your growth and intentionally devour life and all it You are the artist that paints your future with the brush of Paint a M God gives every bird its food, but he doesn't throw it into its Wherever you want to go, whatever you want to do, it's truly up to 试想一下……你!一个空前绝后的你,不论是以往还是将来都不会有一个跟你一模一样的人。你在历史上和宇宙中都是独一无二的。哇!想想吧,你是万里挑一、亿里挑一、兆里挑一的。 在无穷无尽的宇宙中,你是举世无双的!!! 你是了不起的!你是卓越的!没错,就是你。你已经是了不起的,是卓越的,你还可以更卓越更了不起。美丽的年轻人是大自然的奇想,而美丽的老人却是艺术的杰作。但你不会因为年龄的渐长就自然而然地变得“美丽”。 真正的美丽源于生命里的学习、成长和热爱。这就是生命的艺术。你可以只听天由命, 慢慢地学,有时候或许会很痛苦。又或许你可以选择加速自己的成长,故意地挥霍生活及其提供的一切。你就是手握今日之刷描绘自己未来的艺术家。画出一幅杰作吧! 上帝给了鸟儿食物,但他没有将食物扔到它们的巢里。不管你想要去哪里,不管你想要做什么,真正做决定的还是你自己。 本文来自: 恒星英语学习网(H) 详细出处参考:-10-01/html
234 评论(14)

营养目标

我从网课洗洗澡舒服了什么?我从往后可得学习了很多的知识,更加之子知道了知识的重要性,并且知道了呃,学学习学好了知识就可以过自己的辉煌的生活。
143 评论(8)

一路笑着活

On Sunday, I do find nosily kitchen and some vegetables haven't I had a brainwave, thought, if I put these vegetables washed, mom doesn't just don't wash the vegetables?I do it now, take a basket on the vegetables in pool, I rolled up his sleeves, twist, to learn the mother of bibcock of water to wash up like began to pry pups My first, and then rubbing hands with a green leaves to wash, even a little dirty things were not Wash the washing, I touched a soft and My hands like shock as Ah! Look, don't know a fright, is a big leaves on the nutritional "bath" enjoy the fun Frighten me to throw off to the Look out of the leaves, I thought: mum, do not know to wash vegetables undertakes met much larger, but mother always easy-going nutritional picks up the big nutritional throw it, continue to wash I like a I took courage, courage, and picked up the leaves, the big throw away, one foot At this time, although I was goose bumps, but I really like a very I hum a tune to wash Look of vegetables lying in the basket, I happily jumped up and down, and finally help mum and dad did little
273 评论(15)

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