题目内容：
By 1900, states had laws against selling cigarettes to young people.
参考答案：
答案解析：
选择题：By 1900, states had laws against selling cigarettes to young people.
- 题目分类： 大学英语B级
- 题目类型：选择题
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He said that he preferred the country to the city.
He said that he preferred the country to the city.
商业信用与银行信用的联系与区别是什么？
商业信用与银行信用的联系与区别是什么？
加油机内壳空间属于（）。A．0级爆炸危险区域B．1级爆炸危险区域C．2级爆炸危险区域D．火灾危险区域
加油机内壳空间属于（）。A．0级爆炸危险区域B．1级爆炸危险区域C．2级爆炸危险区域D．火灾危险区域
Everyone enjoys being praised instead of criticized.
Everyone enjoys being praised instead of criticized.
Either you must improve your work, or I shall dismiss you.
Either you must improve your work, or I shall dismiss you.