正在下载：高三英语阅读与理解训练题（20套）

阅读理解训练题（十三） A The total area of land on earth is about 149 million square kilometers, or about 39 percent of the total area of the earth. The average height of the land is about 750 metres above the sea level .The Eurasian（欧亚的）land mass is the largest ...