◎ 题干
___all kinds of difficulties,the work-    ers have made rapid progress in the construction of the
World Expo 2010 Shanghai.  
[     ]
A. With    
B. For    
C. Under    
D. Beyond
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“___all kinds of difficulties,the work-ers have made rapid progress in the construction of the World Expo 2010 Shanghai.[ ]A. WithB. ForC. UnderD. Beyond…”主要考查了你对  【介词和介词短语】  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。