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Which two features did WPAv1 add to address the inherent weaknesses found in WEP?（）
A . a stronger encryption algorithm
B . key mixing using temporal keys
C . shared key authentication
D . a shorter initialization vector
E . per frame sequence counter
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Your ARPA has been tracking a target and has generated the targets course and speed.The radar did not receive a target echo on its last two scans due to the weather.What should you expect under these circumstances（）.
A . The ARPA will generate data as if the target was still being tracked by radar
B . The ARPA will give an audible and/or visual lost target alarm
C . The ARPA will generate data based on sea return echoes from the vicinity where the target was lost
D . The ARPA has lost all memory of the target and must recompute the target data
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Whom is the man speaking to?
A . Electrician.
B . Plumber.
C . Guard.
D . Mechanic.
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Why did the man wait in the heat for two hours?
A . The coach had to be replaced．
B . The coach driver felt sick．
C . The hotel rooms were full．
D . The hotel had to be cleaned．
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Whom does “our two” in PARAGRAPH 8 refer to？
A . The couple
B . The kids
C . Local-style markets
D . The gourmets
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How did the U. S. benefit from globalization based on the text?
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The U. S. Congress is the legislative branch of the federal government and it consists of two houses: the House of Lords and the House of Representatives .
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To whom did the dying mother write the letter?
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In ancient times, to whom did people send wild goose as gifts?
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What did you buy at the market?A quart of milk, two pounds of steak, and four _______.
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Which of the following that the author should have said when she quarreled with her former husband but she did not？
A．It was your fault!
B．Maybe you're right.
C．It's none of your business.
D．It's none of my business.
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Initially his book did not receive much attention, but two weeks after the critic's review appeared in the newspapers, it climbed to the best sellers' list.
A．At first
B．First of all
C．At first sight
D．From the first
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How did the two speakers comment on Ben Silverstone's performance in the film？
A．Mediocre.
B．Not bad.
C．Overacting.
D．Affecting.
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In the U. S. , the senatorial term is______years.
A．3
B．4
C．6
D．8
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What happened 'to the U. S. job market？
A．There was a huge increase in new jobs lately.
B．About 75,000 new jobs were created last month.
C．Some 300,000 new workers were employed last year.
D．There was a growth of new jobs in the past six years.
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Why did Central American children try to enter U. S. illegally？
A．Because they wanted to get good education in America.
B．Because they escaped from detention facilities in their country.
C．Because they wanted to live a better life than in their own country.
D．Because they went to find their relatives living in America.
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No nation leaped into the 20th century like Japan. For two hundred years, Japan remained and isolated from the rest of the world. It doubted of western ways. In 1854, Commodore Perry of the U. S. Navy sailed into Tokyo Bay. When he showed the people inventions like the telegraph and railroad train, Japan realized what it was missing. Japan has quickly caught up with western technology. It may have even gone past it.
Japan has a population of over 116,000,000. The people are thickly settled on the four main islands. Since only one sixth of the land is arable, Japan relies on imported food. To pay for the imports, Japan exports manufactured goods.
Japan builds and sells cars, motorcycles, television sets, radios and cameras. Textiles and chemicals also made. In Yokohama Harbor, ships are constructed for use by other nations.
The "head start" western nations had may be the reason for Japan's success today. Western countries are still using machines and technology that they developed many years ago. Japan is using newer, improved methods. For example, robots are relieving factory-workers of long, tiring jobs.
Modem technology has brought modern problems. Air and water quality reached dangerous levels in some parts of Japan in the late 1960's. Since then, the Japanese government has applied strong pollution controls.
The main idea of the passage is that Japan ________.
A．surprises the world.
B．Suffers from serious air and water pollution
C．Leads in exporting goods
D．Leads in technology in the world today
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This passage suggests that the U. S. parents
A．do not respect orders.
B．do not trust their schools.
C．should pick up their children first in case of evacuation.
D．will protect their children at all cost.
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In two decades after introduced into the U. S., railroads didnt become the chief means of transportation mainly because people were______.
A．repugnant to it
B．ignorant of it
C．afraid of it
D．doubtful of it
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The combined sales of the 100 largest foreign investing companies in the U. S. increased by a 40% in the two years between 1977 and 1979, and the number has continued to increase steadily. In 1980 South Africa proved to be the largest financial investor in the U. S. controlling about $19. 2 billion in sales. The Netherlands and the U. K. follow as second largest investors--and Germany next. New to the list of the top 100 foreign investors are 12 banking and finance and insurance companies--the largest, the Hong Kong Shanghai Banking Corp. , from Hong Kong. The number of Latin American companies engaged in business here is growing steadily, often through third country holding companies.
Why are so many firms coming to the U. S. ？ There are many reasons. One of the greatest attractions, of course, is a market of over 200 million consumers with a high average per capital income. In addition, with the devalued dollar the cost of American labor has declined significantly, relative to many foreign labor costs. Some firms seeking to avoid economic and/or political pressures at home find the U. S. a politically stable environment in which to work.
Many hope to be able to continue selling to the American market even if the U. S. government restricts imports further, or if major price changes occur due to currency fluctuations (波动). Many foreigners are attracted by U.S. technology, its modem management methods, its labor saving and mass production techniques.
In 1980 the largest foreign financial investor in the U. S. was from ______.
A．H.K.
B．U.K.
C．Latin America
D．South Africa
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This past fall semester, at Duke University, there were two students who were taking Organic Chemistry. They did pretty well on all of the tests and the midterms and labs,etc., such that going into the final they had a solid “A” . There two friends were so confident going into the final that the weekend before finals’ week，even though the Chemistry final was on Monday, they decided to go up to the University of Virginia and have a party with some friends up there. So they did this and had a great time. However, with the aftereffects of alcohol and everything, they overslept all day Sunday and didn’t make it back to Duke until early Monday morning.
Rather than taking the final then, what they did was to find Professor Aldric after the final and explain to him why they missed the final. They told him that they went up to UVA for the weekend, and had planned to come back in time to study，but they had a flat tire (爆胎）on the way back and didn’t have a spare and couldn’t get help for a long time and so were late getting back to campus.
Aldric thought this over and then agreed that they could make up the final on the following day. The two guys were overjoyed and relieved. So, they studied that night and went in the next day at the time that Aldric had told them. He placed them in separate rooms and handed each of them a test booklet and told them to begin.
They looked at the first problem, which was something simple about free radical formation and was worth 5 points. “Cool，" they thought, “this is going to be easy. " They did that problem and then turned the page. They were unprepared, however, for what they saw on the next page. It said: (95 points) Which tire was flat？
The two students decided to visit their friends at the weekend beacause_______
A.they didn’t want to take the exam
B.they were invited by their friends
C.they were not worried about the exam at all
D.they forget the arrangement of the final exam
They didn’t return as planned because_______.A.they got lost on their way back
B.they slept beyond the time to come back
C.their car broke down on their way back
D.they couldn’t get help when they were in difficulty
How did the Professor arrange the make-up exam？A.He made the exam booklet very long.
B.He gave them different exam papers.
C.He asked a very surprising question.
D.He gave them very limited time to finish the paper.
When they took the first glance at the exam booklet, they thought_______.A.it was easy
B.it was too much
C.it was too difficiult
D.it was reasonable
It can be inferred from the passage that_______.A.the students didn’t like Professor Aldric
B.the two students had difficulties in their studies
C.Professor Aldric was very clever and humorous
D.the two students would surely pass the make-up exam
请帮忙给出每个问题的正确答案和分析，谢谢！
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Mark Twain paid the young porter_________ he usually did for a porter for his helping them have two seats in the sleeping car.
A. twice more as
B. twice as much as
C. twice as many as
D. as twice much as
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the strength of the opponent, we did very well to score two goals（）
A．To consider
B．Considered
C．Considering
D．Consider
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David Bravoria, CFA, is an independent financial advisor for a high net worth client with whom he had not had contact in over two years. During a recent brief telephone conversation, the client states
A、No.
B、Yes,with regard to investment statements.
C、Yes,with regard to purchasing venture capital funds.
