A friend has written to you asking for information about the sports centre in your school, which you know quite well. Study the letter and the advertisement for the sports centre below, on which you have written some notes. Then write back, answering your friend’s questions and saying whether you think the sports centre would be suitable for him/her or not.
As I think I mentioned in my last letter, I’d love to spend some time at that new sports centre I come over and stay with you this August. I don’t want to do anything that’s too organized, so no team sports or anything like that, and I’d rather not be surrounded by lots of people all trying to get super-fit or lose lots of kilos as fast as they can. So if you’ve been there, could you let me know whether you think there would be any pleasant, relaxing activities that I would enjoy?
Looking forward to hearing from you.
Best wishes
Lee
Write your letter in no less than 100 words in an appropriate style. Do not sign your own name at the end of the letter. Use “Li Ming” instead. Now write your letter on the answer sheet.
设A={a，b，c}，B={1，2}，作f：A→B，则不同的函数个数为（ ）．
设A={a，b}，B={1，2}，C={4，5}，从A到B的函数f={<a，1>, <b，2>}，从B到C的函数g={<1，5>, <2，4>}，则下列表述正确的是（ ）．
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