题目内容
函数f(x)=ln|(x-1)(x-2)…(x-2013)|的驻点个数为______．
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Dear friends, Good evening and welcome to our annual Year Awards Banquet. It is such a pleasure to see so many friends here. I am here to extend a special welcome to all of you. It is, indeed, an honor for me to have the opportunity of introducing our guest speaker for this evening. Professor Charles Stuart enjoys distinguished reputation as a speaker, educator, writer and public relation expert. He often appears as a guest on the Australia’’s most popular television and radio interview programs. During his time as professor at the University of Sidney, Professor Stuart is responsible for public relations education. As a matter of fact, he has just returned from a lecture tour in China, where he discussed "trends of international public relations research", which is also his topic this evening. Welcome to Professor Charles Stuart! What is Professor Stuart responsible for during his time as professor at the University of SidneyDuring that time, he is responsible for_________.
You want to get healthy. You know you need to exercise more. But you are not ready to do intense physical activities. Don’’t worry! The best thing for most of us may be to just go for a walk. Yes, walk. At a reasonably vigorous clip (five to six kilometers per hour) for half an hour or so, maybe five or six times a week. You may not feel the benefits all at once, but the evidence suggests that over the long term, a regular walking routine can do you good. Walking, in fact, may be the perfect exercise. For starters, it’’s one of the safest things you can do with your body. It’’s much easier on the knees than running and doesn’’t trigger side effects. Regular physical activity is probably as close to a magic bullet as we will come in modern medicine. If everyone were to walk briskly for 30 minutes every day, we could cut the incidence of many chronic diseases by 30 to 40 per cent. Walking is also a great way to lose body fat, so even if you don’’t lose any weight, your body will have a healthier composition. Most people find they have to walk at least an hour a day to shed kilo. The passage may probably tell the readers_________.
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