It is reported that North Korea once agreed to its neclear program in exchange for economic aid and security guarantees.
A. devote
B. abandon
C. contribute
Dadapt
网友回答
A. devote
(答案→)B. abandon
C. contribute
D. adapt
解析：
试题分析:句意：据报道朝鲜曾经同意放弃核项目为了交换获得经济援助和安全担保。A投入，奉献；B放弃；C促成，投稿；D适应，改编。根据句意判断选B。