【单选题】白令海峡是（　　）

【简答题】下列哪一项内容与穿越白令海峡的“三线”无关？（　　）

【简答题】白令海峡是亚洲和（　　）的分界线．

【简答题】Origin of Vegetable and Animal Life in America When the new world was first discovered, it was found to be, like the old, full of plants and animals, and a great many tribes and nations of men lived t...

【单选题】哥伦布航海发现美洲新大陆，促进了近代历史进程。而大约在距今5万年前，一些生活在亚洲北部的游猎民族从冰河时代海水冻结的白令海峡进入美洲。最近有学者宣称有证据表明，明朝航海家郑和比哥伦布早72年发现美洲大陆。从中我们可以得出( )。

【单选题】白令海峡连接的两个大洋是太平洋和（）。

【简答题】读图，回答1～3题。 1．图中A大洲和B大洲的分界线是 [ ] A．苏伊士运河B．巴拿马运河C．马六甲海峡D．白令海峡 2．包围大洋①的大洲没有 [ ] A．非洲B．亚洲C．南极洲D．北美洲 3．跨经度最多的大洋是 [ ] A．④B．③C．②D．①

【单选题】白令海峡是下列哪两个大洲的分界线（　　）

【单选题】Origin of Vegetable and Animal Life in America When the new world was first discovered, it was found to be, like the old, full of plants and animals, and a great many tribes and nations of men lived t...

【单选题】Origin of Vegetable and Animal Life in America When the new world was first discovered, it was found to be, like the old, full of plants and animals, and a great many tribes and nations of men lived t...