考的太烂了,都不好意思说成绩。记得的JJ也有限,对不起大家了。
Math.
1) 一个长方形内有一个小长方形,大的的每个边都比小的大2,小的长是大的的2倍。大小的面积差是169,问小的的长?(不难,但太紧张了,以至于刚开始没看清给的是面积差。有图的)
2)At a meeting, 3 representatives respectively, from 6 differenct companies. If they shake hands, but the representatives will not shake hands with the same company's, how many totally shankhands?
Vabal: 有starling micmic sounds 的。是第三篇
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