猪毛首线虫的外形似()。

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问题:

猪毛首线虫的外形似()。

考点:兽医考试兽医防治员(综合练习)兽医防治员(综合练习)题库
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汽车衡在最小秤量、()最大秤量和最大秤量进行鉴别力测试

A.25%

B.50%

C.75%

D.90%

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阅读下列材料,回答问题。

材料一 对内改革,是对经济体制、政治体制、教育体制和科技体制等方面进行改革……实行各种形式的责任制。

材料二  对外开放,是为了引进国外资金、先进科学技术和企业管理经验,为我国社会主义经济建设服务,发展民族经济。

请回答:

(1)材料一中的“责任制”在农村突出表现是什么?

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(2)为实施对外开放,我国先后采取了哪些重大措施?简要介绍一下目前我国的对外开放格局。

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(3)对内改革和对外开放三十多年来,我国取得了巨大成就。追溯历史,这主要得益于哪次会议作出的决策?这次会议的历史意义是什么?

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造成术中病人低体温的热散失形式不包括()。

A.辐射

B.传导

C.蒸发

D.冷却

E.对流

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历史学家的工作对象是史料,这些史料主要是各种文献、遗存,它们可以归为广义上的文本,而且最终它们都要以语言形式进入史家的研究。就此而论,历史学家永远无法真正直接接触到过去本身,而只能借助于各种历史文本而对过去有所言说,因而_______,。填入划横线部分最恰当的一项是()。

A.文本性就是历史学家的全部工作所无法脱离的樊篱

B.无法接触完整的史料对历史学家来说是一种遗憾

C.对史料本身的收集和考证就成了史学客观性的保证

D.重建和还原历史的本来面目就成了历史学的根本目的

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It’s a safe bet that the millions of Americans who have recently changed their minds about global warming--deciding it isn’t happening, or isn’t due to human activities such as burning coal and oil, or isn’t a serious threat--didn’t just spend an intense few days poring over climate-change studies and decide, holy cow, the discrimination of continuous equations in general circulation models is completely wrong! Instead, the backlash (an 18-point rise since 2006 in the percentage who say the risk of climate change is exaggerated, Gallup found this month) has been stoked by scientists’ abysmal communication skills, plus some peculiarly American attitudes, both brought into play now by how critics have spun the "Climategate" e-mails to make it seem as if scientists have pulled a fast one.

Scientists are lousy communicators. They appeal to people’s heads, not their hearts or guts, argues Randy Olson, who left a professorship in marine biology to make science films. "Scientists think of themselves as guardians of truth," he says. "Once they have spewed it out, they feel the burden is on the audience to understand it" and agree.

That may work if the topic is something with no emotional content, such as how black holes forms, but since climate change and how to address it make people feel threatened, that arrogance is a disaster. Yet just as smarter-than-thou condescension happens time after time in debates between evolutionary biologists and proponents of intelligent design (the latter almost always win), now it’s happening with climate change. In his 2009 book, Don’t Be Such a Scientist: Talking Substance in an Age of Style, Olson recounts a 2007 debate where a scientist contending that global warming is a crisis said his opponents failed to argue in a way "that the people here will understand. " His sophisticated, educated Manhattan audience groaned and, thoroughly insulted, voted that the "not a crisis" side won.

Like evolutionary biologists before them, climate scientists also have failed to master "truthiness" (thank you, Stephen Colbert), which their opponent--climate deniers and creationists--wield like a shiv. They say the Intergovemmental Panel on climate Change is a political, not a scientific, organization; a climate mafia (like evolutionary biologists) keeps contrarian papers out of the top journals; Washington got two feet of snow, and you say the world is warming’

There is less backlash against climate science in Europe and Japan, and the U. S. is 33rd out of 34 developed countries in the percentage of adults who agree that species, including humans, evolved. That suggests there is something peculiarly American about the rejection of science. Charles Harper, a devout Christian who for years ran the program bridging science and faith at the Templeton Foundation and who has had more than his share of arguments with people who view science as the Devil’s spawn, has some hypotheses about why that is. "In America, people do not bow to authority the way they do in England," be says. "when the lumpenproletariat are told they have to think in a certain way, there is a backlash," as with climate science now and, never-endingly, with evolution. (Harper, who studied planetary atmospheres before leaving science, calls climate scientists "a smug community of true believers. ")

Another factor is that the ideas of the Reformatio--no intermediaries between people and God; anyone can read the Bible and know the truth as well as a theologia--inform the American character more ply than they do that of many other nations. "It’s the idea that everyone has equal access to the divine," says Harper. That has been extended to the belief that anyone with an Internet connection can know as much about climate or evolution as an expert. Finally, Americans carry in their bones the country’ s history of being populated by emigrants fed up with hierarchy. It is the American way to distrust those who set themselves up-even justifiably--as authorities. Presto: climate backlash.

One new actor is also at work. the growing belief in the wisdom of crowds (Wikis, polling the audience on Who Wants to Be a Millionaire). If tweeting for advice on the best route somewhere yields the right answer. Americans seem to have decided, it doesn’t take any special expertise to pick apart evolutionary biology or climate science. My final hypothesis, the Great Recession was caused by the smartest guys in the room saying, trust us, we understand how credit default swaps work, and they’re great. No wonder so many Americans have decided that experts are idiots.

What is the "Climategate" What is the recent debate about global warming

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