题目内容
______from the outer space, the earth looks like a blue ball.
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Physics is the present-day equivalent of______used to be called natural philosophy, from which most of present-day sciences arose.
It is said that those people can______ the plastic sheet into money, but I don't believe it at all.
All the people in this village have black hair. They all ______each other.
In the past, a person might fly a kite and then let it go because he______.
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