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采用复式记账法，要求对每一笔经纪业务都要在两个或两个以上相互联系的账户中以相等的金额进行登记。
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听力原文：W: Hello？
M: Hi, Mary, this is Bill Johnson.
W: Oh hi, Bill. You weren't in engineering class today, were you？
M: I have the flu. I was wondering if you could tell me what went on.
W: Actually we had an interesting class. Dr. Kelvin talked about a new type of fuel.
M: Oh, yeah？
W: Uh-hum. It's called dimethylether or DME.
M: Oh, I remember reading something about DME, but I don't remember the chemical terminology. It's mostly used in spray cans, right？
W: Right. DME doesn't destroy the ozone, so it's been environmentally friendly.
M: But doesn't DME pollute the air if it's burned in an engine？
W: Dr. Kelvin said something about its exhausts being clear, that it doesn't release as much pollutants as diesel fuel. And he mentioned something about DME being more efficient than other alternative fuels.
M: When can it replace diesel fuel？
W: Not for a while. It's not economical to mass-produce.
M: Well, thanks for the information. I guess I won't need to borrow your notes.
W: Well, maybe you should look at them. We are having a test next week.
M: Okay, could you give them to Bill Stanford？ I think he is in your psychology class. He is my roommate.
W: Sure. I hope you're feeling better soon.
M: Thanks. Me, too. Bye!
W: Bye!
(23)
"Heavy-robot manufacturers are in some difficulty【53】finding customers. They are offering big【54】just to get in the door. There has been a【55】growth everywhere in the numbers of robots, so we have to admit we are either deceiving【56】or that the market is slowly growing, "said John Reekie, Chairman of Colne Robotics. "The following things must happen【57】the robotics revolution to occur. We must achieve widespread robot literacy (文化),【58】there has been a computer literacy program, there must be a robot literacy campaign. We must also【59】not just a cut in, but a collapse of robot prices【60】,some kind of artificial intelligence needs to be available".
(51)
听力原文：M: What a great singer Justin is! His concert is just awesome. And you'll never regret the money you paid for the ticket.
W: Yeah. Judging by the amount of the applause, everyone was enjoying it.
Q: What does the woman mean？
(14)
听力原文： The home is the central focus of most young people's lives in Britain, particularly for those who are still attending school. The majority rely upon their home environment as a place of security and upon theft parents as the main providers of food, money and other necessities of life—as well as general advice. Young people spend a large proportion of their leisure time at home with other members of their family or with friends.
After the home, school is the main social environment where children not only receive their formal education but also develop their identities within peer groups. All school children in Britain are encouraged to take up activities which complement their academic and vocational education end help to identify their individual talent, such as sports, drama, music and creative pursuits. Many of these form. part of the school curricula.
The personal development end informal social education of young people aged from 11 to 25 are also promoted by the Youth Service in Britain. The Service is a partnership between law authorities and a large number of voluntary organizations. A recent survey estimates that nearly six million young people in this age group are either current or past participants in the Service.
Youth clubs and centers are the most common types of Youth Service provision, encouraging their members to participate in sport, cultural and creative activities, and community service. Some also provide information and counseling. Youth clubs may be branches of national or international bodies or they may be entirely local institutions.
(33)
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