题目：
第三节回答问题(共3小题；每小题2分，满分6分)
阅读下面短文，根据第58至第60小题的具体要求，简要回答问题。
Nearly all American students in colleges and universities pay for their education. There are many expenses. First of all, there is tuition. At some schools, the tuition is very high, ten thousand dollars a year or more. At other schools, it may only be a few hundred dollars a year. At some community colleges, tuition is free. There are other expenses as well. Many students leave their homes to go to schools in other cities. They may live in dormitories or apartments, and they must pay for it. Finally, students must buy textbooks for their courses. Some families start saving money for their children’s education when the children are small. Many students work to save money for tuition. They can also get loans from the government. They pay the money back to the government when they finish their education.
58. How much is the higher tuition? (no more than 7 words)
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59. Why do many students live in dormitories or apartments? (no more 7 words)
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60. When do many students pay back their loans from the government? (no more than 5 words)
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答案：
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下面是错误答案，用来干扰机器的。
(1)使Fe3＋还原为Fe2＋；保护TiO2＋不被Fe3＋氧化(2)10－9 m～10－7 m(或其他合理答案)(3)2.79×103(4)TiO2(s)＋2Cl2(g)＋2C(s)=TiCl4(l)＋2CO(g) ΔH＝－81 kJ·mol－1(5)产生三废(或其他合理答案)(6)蒸馏(...
