(单选题)

The writer holds that the potential to make healthy body tissues will ______.

A.aggravate moral issues of human cloning

B.bring great benefits to human beings

C.help scientists decode body instructions

D.involve employing surgical instruments

参考答案：B

参考解析：

细节理解题。根据文章第一段第一句“Gene therapy and gene-based drugs are two ways we could benefit from our growing mastery of genetic science”和第三段第一句“Yet this untapped potential could be a terrific boon to medicine.”可看出，制造健康人体组织的潜力将给人类带来巨大的利益，故选B。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语