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问题 填空题

C++语言提供的基本控制结构可以分为3种类型：顺序结构、【 】和循环结构。

答案

参考答案：选择结构

解析：顺序结构(也叫连续结构)和循环结构是经常被使用的，不过选择结构(if和switch)也是一种重要的流程控制结构。

写作题
根据提示和书信内容，写一封意思连贯、符合逻辑、不少于60词的回信。
假设你叫李明，是美国中学生Tom的笔友。请您根据他给你的电子邮件内容写一封回信。谈谈你的个人爱好情况及你对个人爱好的看法。
Dear Li Ming,
I’d like to know what your hobby is. Do you spend much time on it?
My favorite hobby is collecting stamps. I’ve got a wonderful collection of them now. My father bought me the first stamp-album (集邮簿) when I was ten years old. I began to collect stamps from then on. It has brought me great enjoyment but it takes me a lot of time. Sometimes I forget to do my schoolwork. My mother wants me to stop it because she thinks it bad for my study. What do you think about it?
Yours,
Tom
 
Hi Tom,
It’s very nice to hear that you have a hobby of collecting stamps.             
                                                                              
                                                                              
                                                                              
                                                                              
                                                                              
                                                                 Yours, LiMing
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单项选择题

“钢笔”这个概念必须同时具有两个属性，即“以金属做笔身”和“书写工具”。这个概念属于（）。

A.析取概念

B.抽象概念

C.合取概念

D.具体概念
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