科研是对未知领域的探索，它不是对现有知识的应用。()
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社区护理是结合公共卫生学与护理学的理论，应用于促进和维护人类健康的护理活动。()
美学的研究对象和范围归纳为三种观点，即艺术哲学、美感及美和艺术的科学。()
Which of the following prepositional phrases can function as an adverbial？
A. They recognized him as a genius.
B. Over there is where I met him.
C. I think an afternoon in the open air will do us good.
D. He said it for fun, but they took him serioiusly.
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