Hi. I'm not sure if there should be choices but assuming there's none, here is my answer: Zheng He was able to sail around the world, many years before the Europeans. Zheng He was a mariner, explorer, diplomat and a fleet admiral during early periods of the Ming dynasty.
A primary source is better than a secondary source because you know that it is absolutely true and that all aspects of the source are true.
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C. Events happening at the same time might have influenced one
another.
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the us tried to stop the spread of communism in Vietnam, it went badly because the Vietnam knew more area of land than the us did, resulting in unexpected attacks from the Vietnam. after quick attacks the Vietnam would retreat to the forest, where they had multiple bunkers that connected to one another so they could appear in multiple places in in a short amount of time.
which template u havent attached any templates if u do then i can help!!
