I went hiking to a mountain with my friends last summer. It was a good trip at the beginning but something unexpected happened on the half way. One of my friends suddenly felt a terrible pain in his stomach and he couldn't move any further. Nobody knew what to do. One girl tried to call her mum with her mobile phone but there was no signal in the mountain area.
Luckily we brought a tent with us. We put it up and let him rest in it. He took some medicine. Then he drank some water, and ate some food. After a while, he felt much better and we walked on. We all enjoyed ourselves on the top of the mountain.
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GMAT数学备考常见问题小结
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GMAT数学满分的备考方法
GMAT数学必备术语小结
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GMAT数学题库经典试题解析(1)
GMAT数学备考资料:练习+讲解(20)
GMAT数学满分的备考方法及细节
GMAT数学考试常用公式小结
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GMAT数学解题技巧:问题求解
GMAT数学经典例题详细解析(二)
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GMAT数学算数知识精解
GMAT数学充分性问题的解题技巧
快速提升GMAT数学成绩的方法
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GMAT数学总体复习策略分享
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