题目内容

Even many early leaders of the United States have provided names for towns, only George Washington is remembered in the name of a state.

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One out of every ten persons in the 1978 United States labor force was a teenager, compared by one out of fifteen in 1960.

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By studying geometry, students can learn what to develop logical arguments through deductive reasoning.

Our urge to classify different life forms and give us names seems to be as old as the human race.

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