题目

—May I smoke here? —Sorry, it’s dangerous. Look at the sign“______”.A.                                                                                                                         B.                                                                                           C.                                             �中学阶段的你们正处于生长发育的黄金时期-青春期，这一时期不正确的态度和观念是（　　）A、参加体育锻炼，促进身体健康成长B、努力学习科学文化知识，增长才干C、与异性交往有礼有节、文雅庄重D、经常上网玩游戏，排解烦恼