◎ 题干
In the past twenty years, many tall buildings have been built in our city. Look! This is a            .
[     ]
A. 70-floor building
B. 70-floors building
C. 70-floor buildings
D. 70 floors building
◎ 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“In the past twenty years, many tall buildings have been built in our city. Look! This is a. [ ]A. 70-floor building B. 70-floors building C. 70-floor buildi…”主要考查了你对  【可数名词(单数名词,复数名词)】  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。