A-A+
Anderson's early success hasA.greatly speeded
问题详情
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
参考答案
正确答案:B
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1990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。