题目

— Don't smoke any more. It's bad for your health.— I'm trying ________. It's really hard, you know. A . gave it up B . giving it up C . to give it up D . to give up it 答案:C某城镇共有10万人,随机调查2500人,发现每天早上买“都市报”的人为400人,在这个城镇中随便问一个人,早上买“都市报”的概率应是    (小数表示),这家报纸每天在这个城镇的零售量大约为    份.
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