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.
Which of the following contains an adverbial clause of cause？
A. I found my books where I left them.
B. She stood at the door as if waiting for someone.
C. Men differ from brutes in that they can think and speak.
D. I hide the book lest he should see it.
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