About 4.2% of the 1,120 respondents were younger than 20 years, and 26.7% were () 21 and 30 years old.
About 4.2% of the 1,120 respondents were younger than 20 years, and 26.7% were () 21 and 30 years old.
正确答案:between
Tags:yearswererespondents
About 4.2% of the 1,120 respondents were younger than 20 years, and 26.7% were () 21 and 30 years old.
正确答案:between
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