17.(25335-!-item-!-188;#058&002335)
The success of the program to eradicate smallpox has stimulated experts to pursue what they had not previously considered possible--better control, if not eradication, of the other infections such as measles and yaws.
(A) what they had not previously considered possible--better control, if not eradication, of the other infections such as
(B) what they had not previously considered a possibility--better control, if not eradication, of such infections like
(C) something they had not previously considered possible-better control, if not eradication, of such infections as（答案）
(D) something not considered a previous possibility--better control and perhaps eradication, of other infections such as
(E) the possibility of what they had not previously considered--better control and possibly eradication of infections like
NN 们 帮我解释一下 C 比A 好在哪里了 C 的if not eradication 做什么成分 是不是省略呢？
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发表于 2011-3-22 19:48:02
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