问题
填空题
某烟花爆竹厂从20万件同类产品中随机抽取了100件进行质检,发现其中有5件不合格,那么估计该厂这20万件产品中合格品约为( )万件。
答案
19
某烟花爆竹厂从20万件同类产品中随机抽取了100件进行质检,发现其中有5件不合格,那么估计该厂这20万件产品中合格品约为( )万件。
19
Did you know that 11,000 people die every day from smoking? Did you know that people die every day from breathing smoke other people’s cigarettes? Tobacco smoke has 43 ingredients that may cancer. If smokers had learned these when they were young, they probably would never have started smoking. Most smokers try first cigarette when they are teenagers. Often, they start smoking because they think that it makes them look more . Sometimes they start smoking because their friends tell them that it’s cool. If teenagers are told that half of them will die before the age of 65 from smoking cigarettes, how can they still think it’s cool to smoke? One of the biggest problems is cigarette advertisements. Tobacco companies tell the truth to teenagers about cigarettes. After watching the advertisements on TV or looking at the posters in which people ride horses or play in a rock band, young people often think that smoking be cool. Sadly, cigarettes are very difficult to once a person has started smoking. Most teenagers start smoking they are influenced by friends or cigarettes advertisements. And often, the teenagers regret the decision to start smoking later in life. Teenagers need to know bad cigarettes are for their health. If they are told that cigarettes kill more people than guns do, they probably will never start smoking.
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