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摇测大容量设备吸收比是测量60s时的绝缘电阻与15s时的绝缘电阻之比。
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万用表具有多功能、多量程的测量，一般可测量哪些量？
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Fast food-- what does the phrase conjure up for you? Juicy hamburgers, crispy French fries? Most probably, but it may also create images of obese people stuffing themselves with fat and sugar. The latter effect may well be because you have seen Super Size Me, the Oscar-nominated 2004 documentary about the fast-food industry, a film in which American filmmaker Morgan Spurlock eats nothing but food from McDonald's, the multinational fast-food chain, for 30 days.Spurlock's immediate motivation for the film was a lawsuit against McDonald's by two American girls who claimed that they had become obese as a result of eating McDonald's food. They lost their case, but Spurlock, a fit, slim 32 year old, set out to prove they were right. The start of the film shows him being examined by three doctors, who give him a clean bill of health. Spurlock then embarks on a 30-day diet, in which he eats nothing but McDonald's food three times a day and accepts a "Super-Size" portion whenever it is offered to him. The results of the diet prove astonishing. By the end of the 30 days Spurlock is depressed and lethargic, has gained 11.1 kilos and has liver damage. It takes him 14 months to lose the weight he has gained.In the film, as well as following Spurlock's progress, we learn a lot about the nation's health, for example, that 37 per cent of American children are overweight and that two out of every three American adults are obese. Spurlock interviews people ranging from school dinner ladies to food corporation lawyers. The picture that emerges is that of a fast-food industry that cares far more about profits than the nation's health. Spurlock himself remains good-humoured and amusing throughout the film, but the message is clear-- too much fast food can damage your health !Super Size Me is a documentary about ______________________.
Spurlock wanted to show that __________________.
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