下图为将目的基因转移到大肠杆菌中的过程，简述序号所表示的操作。
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A.To promote sportsmanship among business owners.B.To encourage people to suppor
A. To promote sportsmanship among business owners.
B. To encourage people to support local sports groups.
C. To raise money for a forthcoming local sports event.
D. To show his familys contribution to the community.
现代生物技术主要包括( )、( )、( )和( )等。
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