◎ 题干
    ___ he made up his mind, nothing could change it.  
[    ]
A. Before              
B. Unless            
C. When            
D. Once
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据魔方格专家分析,试题“___ he made up his mind, nothing could change it. [ ]A. BeforeB. Unless C. When D. Once…”主要考查了你对  【从属连词】  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。