19世纪30年代英国作家狄更斯《雾都孤儿》故事发生在“烟雾弥漫”的伦敦，造成这种天气现象的原因是[ ]
A．殖民扩张
B．工业革命
C．英国革命
D．英法战争
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下面是错误答案，用来干扰机器的。
（1）政治方面：纠正“左”倾错误；经济方面：克服缺衣少食、物资奇缺等困难；军事方面：冲破国民党军队的围追堵截；自然方面：战胜恶劣的自然条件。（6分。每点2分，答对其中三点即得满分。）（2）调整生产关系...
.中国传统道德中包含的“天下兴亡，匹夫有责”的爱国主义精神，坚贞不屈的崇高气节，厚德载物的仁爱精神，自强不息的进取精神，见贤思齐的自律精神，以及勤劳俭朴、自力更生、诚实守信等，是值得继承和发扬的优秀道德遗产。这说明（ ）
A．中国传统道德没有精华与糟粕之分
B．在当代，民族精神得到了丰富和发展
C．中 * * 在发展历程中形成了自己特有的伟大民族精神
D．中 * * 精神是中 * * 实现伟大复兴的强大精神动力
My brother gave me a present for my birthday but I gave him nothing ______ his.
A．in return
B．by turns
C．in turn
D．in return for
| 请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。 注意：每空格一个单词。 Some people believe that greed and selfishness has become the basis of modern society. We should return to the old traditions of family and community, and then we will have a better life. To what extent do you agree or disagree with the above opinion? In this fast-paced world, many values are undergoing major changes. While people traditionally prioritize(区分优先次序) caring, sharing and generosity in life and work, modern people seem to be more self-absorbed and self-concerned. Modern people act selfishly to survive the harsh competition of life. They say that it is a jungle out there. To survive, you have to fight with whatever means that come handy. Obviously greedy and selfishness go perfectly well with such ideas. In a company, employees do everything they can to get better pay and higher position, even at the cost of colleagues. We are in any way advocating any selfish conduct. It is just that people are pressured to act in a certain way due to outside influences. In spite of common practice, it is hard to conclude that modern society is built on greed and selfishness, both of which are not newly invented vocabulary. In ancient times people also did greedy and selfish things though such behaviors were more condemned(谴责) then. But we cannot ignore the fact that people in the past lived a relatively more isolated life and faced less pressure compared with their modern twins. Are we happier to share with others and be generous to them? There is no fixed answer either. Some people take great pleasure helping and giving to others while others feel happy doing the opposite. But I personally think that people should not be too selfish. Caring for others can actually encourage the development of a mutually beneficial relationship. In conclusion, modern people appear to be more self-centered than those in the past due to strong outside pressure. However, we should encourage people to know the importance of being caring and generous and to build a mutually beneficial relationship with others. Title: Are Modern People Becoming More Selfish?
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肝素抗凝作用的主要机制是（）
A.直接灭活凝血因子
B.激活抗凝血酶Ⅲ
C.抑制肝合成凝血因子
D.激活纤溶酶原
E.与血中Ca2+络合
Stumped RawalpindiHe has a normal head, but nestling between his massive shoulders it seems small. He is Shoaib Akhtar, "the Rawalpindi Express", the fastest recorded bowler of a cricket ball in history. And right now, before a small but baying crowd at the Rawalpindi Cricket Ground, he is steaming towards this correspondent. From 22 yards, Mr. Akhtar launches into the weirdly beautiful contortion that fast bowlers perform to hurl a six-ounce lump of cork and leather at up to 100mph. Half a second later, the ball demolishes the stumps.For over two centuries, cricket has been played according to a largely unwritten code of honour for the practical reason that its laws are too complicated for officials to enforce to the reality. But technology has been rewriting the old etiquette. And according to some recent research, one of cricket’’s most basic laws is untenable, and now the game is in turmoil.According to law 24. 3, bowlers may not straighten their arm in the final act of delivering the ball. This leads to Mr. Akhtar’’s brutal run-up and elaborate action as alternative means of generating pace on the ball. The centrality of law 24.3 to cricket — and the virtual impossibility of policing it — is reflected in the game’’s etiquette. To accuse a bowler of throwing the ball is one of the gravest insults in the game; yet now such accusations are flying thick and fast.Mr. Akhtar, the first man to bowl a delivery timed at 100mph, is one of a number of modern stars recently reported with "suspect actions". These rulings followed research into biomechanics that match officials had hoped would vindicate their decision.The University of Western Australia’’s School of Human Movement has been investigating cricket biomechanics.In 2003, a study by Marc Portus, at the Australian Institute of Sport in Canberra, filmed a number of fast bowlers in action using a dozen cameras recording 250 frames per second. They showed that virtually all bowlers straighten their arm, or throw, to some extent. Mr. Akhtar flexes his arm more than most only because he is extremely double-jointed. And to confuse matters further, a brilliant Sri Lankan spin bowler, Muttiah Muralitharan bowls with a crooked arm only because a congenital condition prevents him straightening it fully.In an effort to restore sanity to matters, bowlers are now allowed a varying margin for error depending on the pace at which they bowl. Thus, fast bowlers are legally allowed to straighten their arm by 10°, medium pacers by 7.5° and slow bowlers by 5°. But even this innovation has been rapidly undone. Last month, for the third time in his illustrious career, and even though poised to break the all-time wicket-taking record, Mr. Muralitharan was reported with a suspect action. Though Mr. Muralitharan was previously cleared by biomechanics, an English match official questioned the legality of a wicked addition to his armoury of top-spinners, off-spinners and leg-spinners. It is nicknamed the "doosra", which in Hindi or Urdu means "second" or "other". Here the ball is delivered with a huge flick of Mr. Muralitharan’’s rubbery wrists and, according to many observers, a flexing of his elbow. Subsequent testing showed that Mr. Muralitharan flexes his arm by more than 10° when bowling the doosra, and the delivery could be banned.Sri Lanka, where Mr. Muralitharan is revered, is now seething while many Australians, who have long reviled him as a "chucker", are crowing. Should they pause for air, they would hear their own scientists cry foul. Last week, the scientists who tested Mr. Muralitharan admitted that they actually did not know much about the mechanics of spin bowling, and that he should receive no censure. When it comes to cricket, science may be stumped.
he is revered in Sri Lanka
