群系

题型:名词解释

问题:

群系

考点:动物育种学动物育种学题库
题型:名词解释

简单机械的发明和使用,始终伴随着人类社会的发展和进步.通常情况下,下列简单机械中属于费力的是[ ]

A.

B.

C.

D.

题型:名词解释

自然界中许多复杂有机物得以彻底降解转化为简单无机物,主要依赖于微生物间的()

A.互生关系

B.共生关系

C.寄生关系

D.拮抗关系

题型:名词解释

Americans have become addicted to superlatives. We seem to need our regular "hyperbole fixes" as if to validate our own existence. This national syndrome becomes most egregious during the run- up to the "Super Bowl," a football game that more often than not turns out to be the "ho-hum" bowl. But to the attuned ear, this pumped-up hype routinely infects most of our conversations. This exaggeration is not the exclusive province of the magpies of sports talk. In a broader sense, some of these embellishments carry with them a subtle but undeniable element of dishonesty.
The news media is perhaps most culpable in promoting our obsession with overstatement. Consider last November’s midterm elections. Television’s political pundits portrayed the results as a "landslide victory" for Republicans and a rejection of President Obama. While it’s true that the GOP picked up 63 seats, the "massive win" becomes a slim plurality when you crunch the numbers.
Michael McDonald, a professor of politics at Virginia’s George Mason University, found that only 41 percent of eligible voters even bothered to vote in the so-called GOP landslide. And within that 41 percent, the margin of victory for House Republicans in the national popular vote was about 7 percent. Still, the media acted as though America had become a tea party nation. In reality, more Americans identify as Democrats (31 percent) than Republicans (29 percent), according to a recent Gallup survey.
Distortions like this tend to be at their most shameful during triumphs and tragedies, precisely when facts and events should be able to stand on their own without being propped up by the banalities of those paid to read a TV teleprompter. I recall during CNN’s live coverage of Pope John Paul Ⅱ’s funeral in 2005, one of my colleagues gushed in her impromptu on-air eulogy that the late pontiff was "the pope of the whole world!"
Such silly media pronouncements are so common that few of us even notice them as they float off into the ether. Yet such hyperbole is not just pompous; it also reveals considerable ignorance. My former colleague’ s remark marginalized not just the billion or so Protestants and Eastern Orthodox adherents who don’ t follow orders from Rome but also the 4 billion Muslims, Jews, Hindus, Buddhists, and others who don’t consider the pontiff worthy of such adulation and veneration. Perhaps just as embarrassing amid this verbal extravagance was the failure to note the significant Catholic dissent over his legacy. Many Roman Catholic clerics, including Jesuits, had been quite critical of John Paul Ⅱ; some were privately relieved his time at the helm was up.
"Great" and "awesome" are other examples of overused words that have become almost meaningless. Earthquakes, tsunamis, and tornados bearing down on you are awesome. Bone- crunching NFL football tackles and films like "Avatar" are not. "Awesome" is so overused it can now be rendered to mean "rather ordinary. " "Tragedy" has become another nearly meaningless word. It used to be reserved for events of mass casualties and deep suffering. Now it’s applied to stories ranging from lost puppies to quarterly earnings reports. The adage (attributed to Stalin) comes to mind: "The death of one man is a tragedy. The death of millions is a statistic. "
The real tragedy is the demise of intelligent self-expression, a consequence of our shriveling vocabularies. Well may we cringe listening to contemporary blather, especially superlatives like "unbelievable," which should properly be used to describe politicians. Sometimes this national obsession with superlatives does a genuine disservice. Wherever did we get the idea that everyone who serves in the military is a hero Heroism demands an act of valor. A retired US Navy captain I know put it best: "Heroes are selfless warriors who risk their lives and often give their lives so others may live. There are plenty of warriors and wannabes, but very few genuine heroes. " If Americans insist on anointing themselves with superlatives, they should at least strive to imitate the British, who are the true masters of exaggeration.
The late historian Barbara Tuchman was spot on: "No nation has ever produced a military history of such verbal nobility as the British’". There is no shrinking from superlatives.... Everyone is splendid: soldiers are staunch, commanders cool, the fighting magnificent. " Years later Ms. Tuchman told me nothing she ever wrote received such an overwhelmingly favorable response as that passage. But rather than imitating British hyperbole, Americans would do well to master the art of understatement and dry wit, the other speaking technique at which the British excel.
In the film "A Hard Day’s Night," John Lennon was asked by an inquiring reporter about his impressions of the United States.
"How did you find America" Lennon was asked.
"Turn left at Greenland," he replied.

The expression "hyperbole fixes"(para. 1) can best be paraphrased as______.

A. understatement idioms

B. overused words
C. exaggerative expressions

D. impromptu eulogies

题型:名词解释

沟通的主要障碍有()

A.语言障碍;知识经验不同的障碍;时间障碍;距离障碍

B.身体障碍;语言障碍;知识结构障碍;年龄障碍

C.语言障碍;知识经验不同的障碍;组织结构不合理;沟通方式选择不当

D.心理障碍;性别障碍;年龄障碍;能力障碍

题型:名词解释

根据冯·诺依曼1946年提出的计算机的程序存储原理而设计的计算机,称为冯·诺依曼结构计算机。下面的说法正确的是()。

A.我们今天使用的微型计算机才是冯·诺依曼型的

B.我们今天使用的大型计算机才是冯·诺依曼型的

C.只有IBM公司生产的计算机才是冯·诺依曼型的

D.我们今天使用的计算机,不论机型大小都是冯·诺依曼型的

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