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单选题 48. The moon-landing is mentioned in the first paragraph to illustrate ________.

A

technology cannot solve all of our human problems

B

progress in vaccine research for influenza has lagged behind

C

great achievements have been made by men in exploring the unknown

D

the development of vaccine production methods can not be stopped

正确答案 :B

解析

目的题。根据文章首段开头可知,现代科技的发展情况把人类送上月球并破解了人类的基因组,而下句却转而提到科学家们在生产疫苗时依然在使用可食用鸡蛋,这实在令人难以置信。显然,前面提到的先进的现代科技是为了与疫苗落后的生产方式形成对比,以此说明疫苗生产方法的陈旧,故B项“流感疫苗研究的进展落后”符合题意。故本题答案为B。