The survey showed that ______ numbers of 15-year-olds were already smoking twent

游客2025-05-08 30

问题 The survey showed that ______ numbers of 15-year-olds were already smoking twenty cigarettes a week.

选项 A、essential
B、steady
C、primary
D、substantial

答案 D

解析

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Thesurveyshowedthat______numbersof15-year-oldswerealreadysmokingtwent