题目内容
把它放在平滑的盘子上，当它的静止的时候，勺柄就会指向南方。When the spoon was put on a plate, its ____e could point to the south.
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后来中国人用小小的钢针代替了汤勺。Then Chinese used a little ____ to ____ the spoon.
600多年前，郑和先后七下西洋，最远到达非洲东岸，红海，便是依靠指南针导航。600 years ago, Zheng He, a famous eunuch of the Ming Dynasty, traveled to Southeast Asia and the Indian Ocean seven times, Zheng even ____ the Red Sea with the help of the zhi nan zhen.
指南针的出现促进了世界航海时代的发展。The invention ____ the development of ____.
13.关于集体主义，下列说法正确的是（ ）。
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