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1.各洲的界线(1)亚欧分界线:乌拉尔山脉、乌拉尔河、大高加索山脉、土耳其海峡。(2)亚非分界线:苏伊士运河、红海、曼德海峡。(3)南、北美洲的分界线:巴拿马运河。(4)欧洲与非洲的分界线:直布罗陀海峡、地中海。(5)亚洲与北美洲的分界线:白令海峡。(6)南美洲与南极洲的分界线:德雷克海峡。(7)欧洲与北美洲的分界线:丹麦海峡。2.世界大洋界线(1)太平洋与北冰洋的界线:白令海峡(楚克奇半
1. The boundaries of each continent (1) The Asia-Europe boundary: the Ural Mountains, the Ural River, the Greater Caucasus Mountains, and the Turkish Strait. (2) The Asian-African dividing line: Suez Canal, Red Sea, and Mande Strait. (3) The dividing line between South and North America: Panama Canal. (4) The dividing line between Europe and Africa: The Strait of Gibraltar and the Mediterranean Sea. (5) The dividing line between Asia and North America: Bering Strait. (6) The dividing line between South America and Antarctica: Drake Strait. (7) The dividing line between Europe and North America: Denmark Strait. 2. The world ocean boundary (1) The Pacific and Arctic Oceans border: Bering Strait (Chu Keqi half