...continuous high level of the water table led to the salination of the arable land . I think the links below can clearly show how and where'...salinization. http://www.edwardgoldsmith.com/page158.html http://en.wikipedia.org/ wiki /Salinization
... they caused harm.[7] 參考資料: http://en.wikipedia. org/ wiki /Severe_acut e_respiratory_syndro me #Symptoms
... with an outer covering of calcareous plates). Land plants were ferns, ginkgoes, ...modern level) (Extracted from http://en.wikipedia.org/ wiki /Jurassic)
...of Kyoto Protocol signatories.) http://en.wikipedia.org/ wiki /Global_warming 圖片參考：http://hk.yimg.com/ i /icon/16/35.gif
雅虎香港 搜尋
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