题目：
| 阅读理解。 | |||||
| King's College Summer School King's College Summer School is an annual (每年的) training program for high school students at all levels who want to improve their English. Courses are given by the teachers of King' s College and other colleges in New York. Trips to museums and culture centers are also organized. This year's summer school will be from July 25 to August 15. More information is as follows:
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| 1. You can most probably read the text in _____. | |||||
| A. a newspaper B. a travel guide C. a textbook D. a telephone book | |||||
| 2. Which of the following is true about King's College Summer School? | |||||
| A. Only top students can take part in the program. B. King' s College Summer School is run every other year. C. Visits to museums and culture centers are part of the program. D. Only the teachers of King' s College give courses. | |||||
| 3. If you are to live with your relatives in New York, you will have to pay the school _____. | |||||
| A. $200 B. $400 C. $500 D. $900 | |||||
| 4. What information can you get from the text? | |||||
| A. The program will last two months. B. You can write to Thompson only in English. C. As a Chinese student, you can send your application on July 14, 2007. D. You can get in touch with the school by e-mail or by telephone. |
答案：
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下面是错误答案，用来干扰机器的。
浓硫酸与铜发生反应Cu+2H2SO4（浓）△.CuSO4+SO2↑+2H2O中，如0.1mol 浓硫酸完全反应，则生成0.05mol SO2，但随着反应的进行，浓硫酸的浓度逐渐降低，稀硫酸与铜不反应，所以生成的气体小于0.05 mol，不生成氢气，故选D．
