◎ 题干
They _____ this estimate ______ the figures for the last three years.  
[     ]
A. are based; with
B. based; according to
C. are based; on
D. based; upon
◎ 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“They _____ this estimate ______ the figures for the last three years.[ ]A. are based; withB. based; according toC. are based; onD. based; upon…”主要考查了你对  【动词短语】  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。