“Facial transplants are no longer science fiction imagination , a surgeon has said, that they are possible but technically complex.. A.adding ,theoretically B. considering ,desperately C.noted ,ethic 题目和参考答案——青夏教育精英家教网—

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“Facial transplants are no longer science fiction imagination ,”a surgeon has said,____that they are ___possible but technically complex..

A.adding ,theoretically B. considering ,desperately

C.noted ,ethically D.stressed , completely

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Try drawing two long parallel(平行)lines on paper. Do they seem to look closer together in the middle than at the ends? A tall column is likely to look narrow halfway up, too. The columns of the Parthenon look as if they stand perfectly straight. Actually, they are slightly bigger in size in the middle and go inward a little at the top. If lines were drawn up along opposite sides of the columns, these lines would meet about one mile above the building.

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