保护我们的城市
It is very important to deal with the rubbish in cities. Rubbish must be thrown away or reused properly. Or it may cause a lot of probls. It may pollute the air and water. People may get ill when they breathe the polluted air or drink the polluted water.
Our city has started to face the probl. Some rubbish is sorted and sent to a certain place .Waste gas is cleaned before it goes into the air. Waste water is also cleaned before it is poured into rivers.
People should be prevented from throwing rubbish everywhere. We should try our best to take care of our environment and fight against pollution.
提高GMAT数学成绩策略
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GMAT数学术语:几何部分的三角词汇
GMAT数学例题详解(十三)
GMAT数学备考资料:练习+讲解(4)
GMAT数学必背词汇汇总(2)
GMAT数学备考资料:练习+讲解(10)
GMAT数学备考资料:练习+讲解(15)
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GMAT数学必背词汇汇总(1)
GMAT数学例题详解(四)
GMAT数学例题详解(二)
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GMAT数学备考资料:练习+讲解(11)
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GMAT数学例题详解(十)
GMAT数学例题详解(五)
GMAT数学例题详解(九)
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GMAT数学术语:几何部分的平面,、立体词汇
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GMAT数学例题详解(十一)
GMAT数学例题详解(二十)
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GMAT数学例题详解(十二)
GMAT数学备考资料:练习+讲解(3)
GMAT考试数学概念和名词汇总(六)
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