问题 填空题

已知M(-2,1),N(3,2),直线y=kx+1与线段MN有交点,则k的范围是______.

答案

∵M(-2,1),N(3,2),

∴线段MN的方程为:

y-1
2-1
=
x+2
3+2
(-2≤x≤3)

即x-5y+7=0(-2≤x≤3)

将y=kx+1代入,可得(5k-1)x=2

x=

2
5k-1

∵直线y=kx+1与线段MN有交点

-2≤

2
5k-1
≤3

k
5k-1
≥0或
1-3k
5k-1
≤0

∴k≤0或k≥

1
3

∴k的范围是k≤0或k≥

1
3

故答案为:k≤0或k≥

1
3

单项选择题

(三)甲公司拥有一条生产线,生产的产品A主要销往国外。甲公司以人民币为记账本位币,销往国外的产品采用美元结算。甲公司2009年末对该生产线进行减值测试。相关资料如下:
(1) 该生产线原值为5000万元,累计折旧1000万元,2009年末账面价值为4000万元,预计尚可使用5年。假定该生产线存在活跃市场,其公允价值为3400万元,直接归属于该生产线的处置费用为150万元。该公司在计算其未来现金流量的现值确定可收回金额时,考虑了与该生产线有关的货币时间价值和特定风险因素后,确定6%为该资产的最低必要报酬率,并将其作为计算未来现金流量现值时使用的折现率。
(2) 甲公司经批准的财务预算中,关于2010年、2011年该生产线预计未来现金流量的有关资料如下:产品A销售现金收入分别为500万美元、300万美元,购买生产产品A的材料支付的现金分别为100万美元、150万美元,支付的设备维修支出分别为现金5万美元、20万美元,2011年该生产线处置所收到净现金流量为2万美元。假定有关现金流量均发生于年末,收入、支出均不含增值税。相关复利现值系数如下:

1年2年
%6的复利现值系数0.94340.8900
(3) 2009年12月31日的汇率为1美元=6.85元人民币。甲公司预测以后各年末的美元汇率如下:第1年末为1美元=6.80元人民币;第2年末为1美元=6.75元人民币。

2009生产线应计提的减值准备为( )。

A.390.05万元

B.423万元

C.642.66万元

D.673.04万元

单项选择题

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