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题目内容
（西安科技大学-测绘工程-大学英语1）
【单选题】
Only by keeping down costs will America maintain its _________ advantage over other countries.
A、
competitive
B、
competition
C、
competitor
D、
contestant
Only by keeping down costs will America maintain its _________ advantage over other countries.
A、
competitive
B、
competition
C、
competitor
D、
contestant
参考答案
