题目内容
20.We have made a survey among 1,000students from a middle school about their favorite food._ students like fruits according to the form.( )| Kind of food | Chocolate | Banana | Cookie | Apple |
| Percentage(百分比)of the students | 20% | 30% | 15% |
| A. | 350 | B. | 650 | C. | 800 |
分析 我们在1000个中学生中做了一个关于他们最喜爱的食物的调查,从这份调查表可以知道,650个学生喜欢水果.
解答 题目中问的是喜欢水果的学生数,从图表中可以看出,水果包括banana和apple,喜欢banana的百分之三十,也就是300人,喜欢apple的可以算出是百分之三十五(100%-20%-30%-15%),也就是350人,所以共计650人,故选B.
点评 此类题目的解决关键,首先是要读懂题意,要把要点看清楚,不能漏点,其次要仔细计算,不能着急.
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