在生态系统中对自然界的碳--氧平衡等物质循环起主要作用的生物是( ) A.病原菌

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问题:

在生态系统中对自然界的碳--氧平衡等物质循环起主要作用的生物是(  )

A.病原菌

B.根瘤菌

C.细菌和真菌

D.大肠杆菌

考点:细菌和真菌在自然界中的作用人类对细菌和真菌的利用
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()产品,正常生产时的工艺条件必须调整一致。特殊情况须报纱线事业部进行申批。

A、同品种

B、同原料

C、同类型机台

D、以上都是

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简述监督思想、监督理论、监督实践之间的关系。

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下列关于药物对孕妇的影响哪一项不正确

A.静滴大量四环素治疗肾盂肾炎,可引起暴发性肝代谢失调,死亡率很高

B.妊娠后期应用红霉素十二烷基硫酸盐引起阻塞性黄疸并发症的可能性增加

C.孕妇需要解热镇痛药时,应选用阿司匹林,而不用乙酰氨基酚

D.一些刺激性强的药物,如泻药、利尿药,可能引起早产或流产

E.如孕妇营养不足,可适当补充铁、钙、叶酸盐、维生素B1、维生素B6

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长株潭生态绿心地区,是指长沙、株洲和湘潭三市523平方公里的交汇地区,北至长沙绕城线及浏阳河,西至长潭高速西线,东至浏阳柏加镇,南至湘潭县梅林桥镇。()

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Many will know that the word "muscle" comes from the Latin for "mouse" (rippling under the skin, so to speak ). But what about "chagrin", derived from the Turkish for roughened leather, or scaly sharkskin. Or "lens" which comes from the Latin "lentil" or "window" meaning "eye of wind" in old Norse Looked at closely, the language comes apart in images, like those strange paintings by Giuseppe Arcimboldo where heads are made of fruit and vegetables.

Not that Henry Hitchings’s book is about verbal surrealism. That is an extra pleasure in a book which is really about the way the English language has roamed the world helping itself liberally to words, absorbing them, forgetting where they came from, and moving on with an ever-growing load of exotics, crossbreeds and subtly shaded near-synonyms. It is also about migrations within the language’s own borders, about upward and downward mobility, about words losing their roots, turning up in new surroundings, or lying in wait, like "duvet" which was mentioned by Samuel Johnson, for their moment.

All this is another way of writing history. The Arab etymologies of " saffron ", "crimson" and "sugar" speak of England’s medieval trade with the Arab world. We have "cheque" and "tariff" from this source too, plus "arithmetic" and "algorithm"-just as we have "etch" and "sketch" from the Dutch, musical terms from the Italians and philosophical ones from the Germans. French nuance and finesse are everywhere. At every stage, the book is about people and ideas on the move, about invasion, refugees, immigrants, traders, colonists and explorers.

This is a huge subject and one that is almost bound to provoke question-marks and explosions in the margins-soon forgotten in the book’s sheer sweep and scale. A balance between straight history and word history is sometimes difficult to strike, though. There is a feeling, occasionally, of being bundled too fast through complex linguistic developments and usages, or of being given interesting slices of history for the sake, after all, of not much more than a "gong" or a "moccasin". But it is churlish to carp. The author’s zest and grasp are wonderful. He makes you want to check out everything-" carp" and "zest" included. Whatever is hybrid, fluid and unpoliced about English delights him.

English has never had its Acad mie Francaise, but over the centuries it has not lacked furious defenders against foreign "corruption". There have been rearguard actions to preserve its "manly" pre-Norman origins, even to reconstruct it along Anglo-Saxon lines: "wheel- saddle" for bicycle, "painlore" for pathology. But the omnivorous beast is rampant still. More people speak it as their second language than as their first. Forget the language of Shakespeare. It’s "Globish" now, the language of aspiration. No one owns it, a cause for despair to some. Mr. Hitchings admits to wincing occasionally, but almost on principle he is more cheerful than not.

According to the text, which of the following is TRUE ?()

A."Muscle" derives from Italian

B."Chagrin" derives from Turkish

C."Crimson" derives from Persian

D."Sketch" derives from German

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