Anderson's early success has_______。

A．greatly speeded the development of medicine

B．brought no immediate progress in the research of gene-therapy

C．promised a cure to every disease

D．made him a national hero

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参考答案

答案解析

文章第二段一开头就说：“It’s not entirely clear why medicine has been SO slow to build on Anderson’s early Success．”从时间上来看，Anderson采用基因疗法的成功尝试已经是l990年的事情了，两相对照，可见他的成功没有让医学加速发展。因此正确答案为B。

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