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About ____of the workers in the factory were born in the __ A two—thirds,1970 B two-thirds,1970s Ctwo-third,1970 D two-third,1970s.答案为什么是D

题目详情
About ____of the workers in the factory were born in the __ A two—thirds,1970 B two-thirds,1970s C
two-third,1970 D two-third,1970s.答案为什么是D
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two—thirds,1970s