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EathenZhao 发表于 2014-10-23 21:32 10 pounds apple+2 pounds grip=12,求the price of apple per pound 1) the price of 2 pounds grip=X ...
last_one_dance 发表于 2014-10-23 22:07 列比例式子,两边 0.03%/160=x/80,然后就是等号左边上下都除以2就等于右边了。所以是0.015% ...
Rebecca1709 发表于 2014-10-23 16:33 拿考试信息给保安看他就会让你进了~~同在厦门考的给楼楼加油~~~
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