They thought it desirable that an armed guard ____ in readiness.

A . Circulating currents are kept to a minimum B . Field excitation losses are kept to a minimum C . Generator rotors will have a lesser tendency to hunt D . Because a power factor increase will decrease kilowatt output

A . Tearing through the member is more likely in this type connection B . The weld may be broken by the stresses caused by riveting C . The weld increases the tensile stress on the rivet heads D . The welding must be completed before the riveting commence

A . shock loading on the tow line is reduce B . towing speed is improved C . the vessel is more visible from the tug D . the catenary of the tow line is reduced

A) whatever B) whomever C) whichever D) whoever

The popular Internet search engine e-mailed investors registered to bid on its shares that it priced the initial public offering at $85 a share. That was the low end of the new expected range, which was already reduced from $135. Also, 【B2】______ , and several big shareholders said they would not sell anything in the IPO. The upshot, rather than raising $3.1 billion in what would have been the 13th biggest initial public offering, the sale would raise just $1.7 billion— 【B3】______ . Under the symbol GOOG, Google is expected to begin trading on the Nasdaq Thursday. Co-founders Sergey Brin and Larry Page, who would have been worth $4.6 billion midway in the original IPO range, saw the value of their post-sale stakes shrink to $3.2 billion. Still, 【B4】______ . A series of missteps by Google and renewed turmoil in tech stocks proved a powerful problem for what has been billed as the most anticipated IPO since the tech bubble burst. "Google has stumbled badly out of the gate, even before it was out of the gate," says David Garrity of research firm Caris & Co. Late Wednesday, the Securities and Exchange Commission granted Google's request to certify the IPO, after delaying the offering 24 hours. Separately, Google said the SEC was investigating whether its co-founders had violated "quiet period" rules. Soon after the SEC decision, 【B5】______ . Despite the blemishes, the IPO is another big accomplishment for the company. Started less than six years ago, Google has thrived letting consumers search the Internet for free while it charges advertisers for putting links on its Web site. A. that would rank them near 50th on the Forbes richest Americans list B. Google's two founders cut in half the number of shares they expected to sell as part of the offering C. Google on Wednesday slashed the price and size of its much-hyped IPO D. which would rank Google in the top 5 IPOs E. Google closed the unusual auction for its shares and notified winning bidders F. Google began to sell its shares at the price of $105 a share G. which would not even rank it in the top 25 IPOs H. Google decided to size down its number of employees 【B1】______

A．A.melt B．B.must melt C．C.would melt D．D.had melted

A．The Genius. B．The Tycoon. C．The Stoic. D．The Giant.

Jercy Page was ninety years old when the doctors came to his home in New Jersey. They thought for sure that he got some sleep of some kind. So they stayed with him and watched every movement he made. But they were surprised. Though they watched him hour after hour and day after day, they never saw Jercy Page sleeping. Actually, he did not even own a bed. He never needed one. The only rest that Jercy Page got was sitting in a comfortable chair and reading newspapers. The doctors were puzzled by this strange continuous sleeplessness. They asked him many questions, hoping to find an answer. They found only one answer that might explain his condition. Page remembered some talk about his mother having been injured several days before he was born. But that was all. Was this the real reason？ No one could be sure. The main idea of this passage is that ______. A．large numbers of people do not need sleep B．a person was found who actually didn't need any sleep C．everyone needs some sleep to stay alive D．people can live longer by trying not to sleep

By this time, the World War II had ended in Europe. But the Japanese refused to surrender, the Americans decided that by dropping an atomic bomb on Japan, they could end the war quickly and save more of their soldier’s lives. Soon after midnight on 6 August 1945, a bomb was dropped on the city of Hiroshima, a civilian target. No warning was given and there was total devastation. Almost all the buildings were destroyed and more than 100000 people died or were horribly wounded. The Japanese military still did not want to surrender so three days later, the Americans dropped a second atomic bomb on the city of Nagasaki, killing 45000 people. The Japanese government was discussing ending the war when they heard the news of Nagasaki. Finally, they surrendered and the World War II came to an end. At first, the scientists who had built the bomb were pleased that it had helped to end the war. However, many would come to realize that they had helped to create the most terrible weapon known to man. The first atomic bomb ______. A．was less powerful B．was dropped in Nagasaki C．was a failure D．was tested in desert

A．of B．on C．in