问题 选择题

Every ________ had been made in order to save the boy with the H5N1 bird flu, but all in vain. He died at last.

A.effect

B.affect

C.infect

D.effort

答案

答案:D

词义辨析。A.影响  B. 情感 C.感染  D. 努力。句意:为了救助感染H5N1禽流感的男孩,付出了所有努力,但是都无济于事。他最后死了。故选D。

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