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昔日的撒哈拉非洲第二大城市亚历山大□蒋松成／湖南省武冈市第二中学从大西洋到红海，撒哈拉沙漠横贯整个北非，东西连绵近５０００千米，南北纵深近２０００千米，面积有７７０多万平方千米。自从人类有文字记载以来，撒哈拉这个词就意味着干旱、饥渴和死亡。在科学进步...
The oldest secondary school in Sahara Africa, Alexandre Jiang Songcheng, and Wugang Second School in Hunan Province, from the Atlantic Ocean to the Red Sea, the Sahara Desert traverses North Africa, with nearly 5,000 kilometers of east-west and nearly 2,000 kilometers in depth from north to south, with an area of over 7.7 million. square kilometer. The word Sahara has meant drought, hunger, and death since human records were written. Progress in science...