◎ 题干
The UN has already____the use of chemical weapons  during warfare, since they are too destructive.  
[     ]
A. approved    
B. allowed  
C. banned    
D. protected
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“The UN has already____the use of chemical weaponsduring warfare, since they are too destructive. [ ]A. approved B. allowed C. banned D. protected…”主要考查了你对  【动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。