Overpopulation is a terrible threat to the human race.Yet it is probably ____ a threat to the human race than environmental destruction.?

    A.no more             B.not more?C.even more          D.little more?

B    


解析:

   考查形容詞比較級(jí)的用法。根據(jù)第二句中的Yet可知，這句話的意思是說雖然人口過多對(duì)人類是一個(gè)很大的威脅，可是它可能還沒有環(huán)境污染對(duì)人類的危害大，由此可知B項(xiàng)符合語境。

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