题目内容
Computer programmer David earns $40,000 a year designing new computer games, yet he cannot find a bank to let him have a credit card. Instead, he has been told to wait another two years until he is 18. The 16-year-old works for a-small firm in Liverpool. David’s firm releases two new games for the fast growing computer market each month. But David’s biggest headache is what to do with his money. Even though he earns a lot, he cannot drive a car, take out a mortgage(抵押货款), or get credit cards. "I got the job because the people who run the firm knew I had already written some programs." he said. David spends some of his money on records and clothes, and gives his mother 50 pounds a week. "Unfortunately, computing was not part of our studies at school," he said, "but I had been studying it in books and magazines for four years in my spare time. I knew what I wanted to do and never considered staying on at school." David added, "I would like to earn a million and I suppose early retirement is a possibility. You never know when the market might disappear.\ In what way is David different from people of his age
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We experience different forms of the sun’s energy every day. The sun is the major source of energy for our planet. It causes the evaporation(蒸发)of water from the oceans and lakes. Sunlight also provides the energy used by green plants to make their own food. Much of the energy that comes from the sun never reaches the earth’s surface. It is either reflected or absorbed by the gases in the upper atmosphere. Of the energy that reaches the lower atmosphere, 30% is reflected by clouds or the earth’s surface. The remaining 70% warms the surface of the planet, causes water to evaporate, and provides energy for the water cycle and weather. Only a tiny part, approximately 0.023%, is actually used by green plants to produce food. Many gases found in the atmosphere actually reflect heat energy escaping from the earth’s surface back to the earth. These gases act like the glass of a greenhouse in that they allow energy from the sun to enter but prevent energy form leaving. They are therefore called greenhouse gases. When sunlight strikes an object, some of the energy is absorbed and some is reflected. The amount reflected depends on the surface. Dark-colored surfaces, such as dark soil or forest, absorb more energy. According to the passage, the root cause for weather changes on the earth is
某企业生产A、B、C三种联产品，本月发生的联合成本是36000元，若本月生产加工出A产品2000千克，B产品8000千克，C产品2000千克，其中A的价格为每千克5.4元，B和C需要进一步加工才能分别以每千克6．3元和7元的价格出售，其额外加工总成本分别为1500元和1700元，要求用可变现净值法进行分配。 要求： (1)计算应分配给A、B、C三种产品的联合成本； (2)计算A、B、C三种产品的单位成本。
假设你是王霞，计算机专业，即将毕业，现在想要申请去美国留学，就此写一封100字左右的英文申请信。要点： 1．简单的自我介绍 2．申请理由 注意：可以适当添加细节，以使行文连贯
After the birth of my second child, I got a job at a restaurant. Having worked with an experienced (36) for a few days, I was (37) to wait tables on my own. All went (38) that first week. When Saturday night came, I was luckily (39) the tables not far from the kitchen. (40) ,I still felt it a little hard to carry the heavy trays(托盘). Before I knew it, the (41) was full of people. I moved slowly, (42) every step. I remember how (43) I was when I saw the tray stand near the tables. It looked different from the one I was (44) on. It had nice handles, which made it (45) to move around. I was (46) with everything and began to (47) I was a natural at this job. Then an old man came to me and (48) ," Excuse me, dear, my wife and I loved (49) you work. It seems your tray stand has been very (50) to you, but we are getting ready to (51) now, and my wife needs her (52) back." At first his (53) did not get across. Then, I got it. I had set my trays on his wife’s orthopedic walker(助听器). My face was (54) . I wanted to get into a hole and (55) .
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