[单选题]某中学正开展“无烟校园”活动。假如你是该校学生，在校园内遇见一位家长正在吸烟，你该怎么劝阻。下列语言最得体的是( )。（2分）

正确答案 ：C

您好！我们学校正在开展“无烟校园”活动，为了大家的身体健康，请您不要在这里吸烟，好吗？

[单选题]Bill Gates(11) on October 28,1955． He grew up in Seattle ,Washington．He was a very(12 ) boy．His favorite subjects at school were science and maths．( 13) he was 13 years old ,Bill started to play with computers． At that time ,computers (14) very large machines．Once he was very interested (15) a very old computer． He and some of his friends (16).lots of time doing unusual things with it． In the end ,they worked out a software program(软件程序：) with the old machine． Bill (17) it for $ 4,200 when he was only 17．

正确答案 ：D

was born

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