举个例子先:Of the positive integers that are multiples of 30 and are less than or equal to 360,what fraction are multiples of 12?
其实呢,如果没有这个倒装,应该没有任何问题:What fraction of the positive intergers that are multiples of 30 and are less than or equal to 360 are multiples of 12?主要就是一个阅读的问题:A占B的几分之几用英文解释是:what fraction of B are A 。因此,这个问题就归结于阅读问题,而这个阅读的问题不在于单词,而在于这么一点:不仅仅是单词,一些数学里面很“口语”化的内容用英文怎么表达?
再比如:In country A ,a person is born every 3 seconds and a person dies every 20 seconds.Therefore,the birth and death rates account for a population growth rate of one person every___ seconds。
例如:mechanical toy cars A, B, and C, each traveling at its own uniform rate, started from the same point at the same time and raced a 400-meter course. When A crossed the finish line, B was 40meters behind A, and C was 58 meters behind A. When B crossed the finish line, how many meters was C from the finish line?
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