On March 23, 2013, a 5-year US government bond wit...

al coupon payments at a coupon rate 8% was going to be issued. Which one of the following two other US Treasure bonds can be used as comparable asset to evaluate the issued bond?

A、A 5-year bond with a face value of $1,000 and a coupon rate of 9%, issued that morning and being traded at a price of $1030

B、A 10-year bond with a face value of $1,000 and a coupon rate of 8%, issued on March 22, 2008 and being traded at a price of $980

C、Both of bonds mentioned in A and B

D、None of bonds mentioned in A and B

On August 24, 2015, a 5-year US government bond with a face value of $1,000 that makes annual coupon payments at a coupon rate 8% was going to be issued. Now there are following US Treasure bonds trading in the market:Which bond can be used as comparable asset to evaluate the issued bond?

A、bond 1

B、bond 2

C、bond 3

D、bond 4

Suppose that as a prospective bondholder you know that the market price of a US$6 000 face value one-year bond (Bond A) paying US$120 with a yearly coupon was US$5 700 while an alternative bond of the same class ( Bond B ) had a yield-to-maturity of a 5 percent. You would

A．purchase Bond B

B．purchase Bond A

C．be indifferent to which bond to purchase

D．be unable to decide based on the information given

al compounding) and you bought a 30-year US Treasury bond. Today it is flat at a rate of 5% per year (with annual compounding). What rate of return did you earn on your initial investment, if the bond was a 4% coupon bond with $100 face value?

A、-11.14%

B、-12.14%

C、-13.14%

D、-14.14%

听力原文： US job growth slackened in April, the federal government reported on May 5, 2006, but the hourly wages of ordinary workers jumped, and their pay is finally rising faster than inflation.

The nation's employers added only 138,000 jobs, well below the average of 210,000 a month since last November. The unemployment rate, however, held at a low 4.7 percent. The contradictory numbers left economists unsure whether the weaker April job growth was just a hiccup or early evidence of a slowdown in the economy.

"I am inclined to say that the weak April report is noise in the numbers," said economist Ian Shepherdson, "but I'm not certain. We may be getting an early, ambiguous signal that the economy is weakening. Turning points sometimes start this way."

Wall Street saw in the April jobs report a justification for policy makers at the Federal Reserve to stop raising interest rates after doing so one more time at their next meeting, on Tuesday. Reflecting this sentiment, the Dow Jones industrial average soared.

The Dow closed at 11,577.74, up 138.88 points for the day. That was its highest level since January 2000, the month in which the bubble market of the late 1990's finally ended, peaking at 11,722.98. Some interest rates fell yesterday for the same reason that stock prices rose.

"There is still a substantial minority on Wall Street who say there is a reasonable chance that the Fed will raise rates in June," Mr. Shepherdson said, "but stock market investors focused on what the increased employment numbers suggest."

How many new jobs were added in April?

A．108,000

B．135,000

C．138,000

D．210,000

Even though she's just 5 years old, Cindy Smart speaks five languages. She's a good reader. She can tell time and do simple math. She's not a person with exceptional powers. She's just good at programming. Cindy looked like an doll(洋娃娃), with long, golden hair, baby-blue eyes, and a button nose. But Cindy is the first doll that can sec, think, and do as she's told.

The eagle-eyed Cindy follows in the path of other breakthrough toys like Sony's barking Robot Aibo, which was the first to popularize voice command in the late 1990s. Cindy goes one step further; she not only follows instructions but also recognizes shapes, colors, and words -- and remembers. The effect is a doll that appears to be learning.

The toy company which produced Cindy Smart spent ten years trying to see how much human nature it could breathe into an inanimate object. Its engineers began researching basic and 'affordable artificial intelligence (人工智能), creating minibots that sense light, sounds, and pressure, However, without the sense of sight, their toys seemed to be lacking one of the keenest (敏锐的) abilities that life forms use to react to their environment.

So how do the engineers make a doll actually see? In Cindy's case, it's a multi-step process. When presented a text like "I love you" and asked" Can you' read this?" Cindy takes it as one of 70 preprogrammed commands. Then the inbuilt camera scans(扫描) a 15-degree radius (半径) in search of number or letter-shaped objects. Buried in her stomach, Cindy's 16-bit microprocessor compares the text with her database of 700 words. If it's a match, "I love you, "she utters.

This text most likely appears in a ______.

A．medical report

B．language dictionary

C．science journal

D．music magazine

The US debate on human cloning gathered steam recently, moving toward federal legislation that could affect both next fall's Congressional elections and the pre-eminence of US scientists in the worldwide race to turn research on human embryonic stem cells into a therapeutic revolution.

Testimony at a US Senate hearing on 5 March debated a bill proffered by Republican Senator Sam Brownback (Kansas) that would impose criminal penalties on all attempts at transferring a human somatic cell nucleus into a human egg, whether the purpose was to create an infant (usually called reproductive cloning) or to derive embryonic stem cells for disease research (usually called therapeutic cloning.) The US House of Representatives passed a similar total ban last year. Two other bills have also been introduced into the Senate; both would ban reproductive human cloning but permit therapeutic cloning.

Meanwhile, President Bush is expected to fill the long-vacant top job at the National Institutes of Health this week with Elias Zerhouni, executive vice dean of the Johns Hopkins University School of Medicine in Balthnore. For several months the front-runner for NIH director had been AIDS expert Anthony Fauci, head of the National Institute of Immunological Diseases and Stroke. The campaign against Fanci was led by Brownback, who regarded him as insufficiently pro-life. Zerhouni is said to have endorsed Brownbacks anti-cloning bill in writing.

The Bush administration also proposed last week that the United Nations adopt a Brownback type worldwide ban on human cloning, including therapeutic cloning. The UN is considering prohibiting reproductive cloning, but delegates from Europe and Asia oppose interfering with cloning to produce embryonic stem cells for research.

The US Senate hearing starred Christopher Reeve, Hollywood's former Superman, a persuasive high-profile advocate for stem cell research who is handsome as ever, but paralyzed from the shoulders down and unable to breathe on his own because of a riding accident some years ago. Testifying against the Brownback bill, Reeve told the hearing that only human embryonic stem cells carrying his own DNA offered hope for remyelinating his devastated spinal nerves via an immunologically compatible cell transplant. Also testifying against the bill was the hearing's scientific star, Nobel laureate Paul Berg of Stanford University. Berg argued that human stem cells not only could solve the problem of transplant rejections, they also could provide a unique source of information about common chronic late-onset diseases such as cancer. Studying cells from young people carrying mutations that predispose them to complex disorders could illuminate the disease process and generate clues to prevention or cure, he said. As both these applications are based on transfer of particular nuclei into human eggs, he pointed out, none of the existing 78 human embryonic stem cell lines President Bush approved for federally funded research last summer would be useful either for complex disease research or for compatible transplants.

Berg also objected strongly to both the Brownback and the House bills' ban on importing therapies based on human embryonic stem cell research done elsewhere in the world. That would prevent 280 million Americans from taking advantage of treatments developed in nations such as the UK where some of this research is permitted, he pointed out. It might even mean that Americans who seek such treatments abroad could be arrested and fined when they return, he predicted.

Both Reeve and Berg have suggested that a comprehensive ban on human cloning would put US scientists at a competitive disadvantage. The US would take a giant step backward in research leadership, Reeve noted, and anyway the work would be done abroad, for example in Europe. "Those are not rogue nations behaving irresponsibly," he told the Senate. Berg has said that h

A．Both reproductive and therapeutic cloning

B．Reproductive cloning only

C．Therapeutic cloning only

D．Neither reproductive nor therapeutic cloning

EDI进水电导率宜控制在()。

A.≤5us/cm

B.≤10us/cm

C.≤50us/cm

D.≤100us/cm

如图5所示电路，UAB＝（ ）

A、US+RI

B、US-RI

C、-US+RI

D、-US-RI