问题 单项选择题

以下叙述中错误的是( )。

A) 用户所定义的标识符允许使用关键字
B) 用户所定义的标识符应尽量做到“见名知意”
C) 用户所定义的标识符必须以字母或下划线开头
D) 用户定义的标识符中,大、小写字母代表不同标识

答案

参考答案:A

解析: C语言规定标识符只能由字母、数字和下划线三种符号组成,而且第一个字符必须是字母或下划线。大写字母和小写字母被认为是两个不同的字符,用户在定义标识符时应尽量做到“见名知意”,且不允许使用关键字作标识符。

阅读理解

阅读理解。

      With the start of the new term, the students around the country exchange their fun and fashionable

clothes for boring school uniforms (校服). But not all campuses are fashion deserts. Colorful sports shoes,

school bags, T-shirts and even drink containers are breathing life into campuses.

      "The uniform makes us look like a bunch of clones, especially when we are doing morning exercises

on the playground," said Qing Pei, a Senior 2 from Shanghai Qibao High School. "But the boys wear different

sports shoes and girls have different decorations in their hair. These are the areas where you can express

yourself," said Qing. 

      Although it might be strange for boys to talk about fashion, they do care about what they wear in school,

especially shoes, according to Qing. "Nike and Adidas basketball shoes, although they are still the must-have

items for many of my friends, are becoming out-of-date," Qing added. He explained that "Since Liu Xiang ran

so fast in Athens, running shoes are becoming popular in this autumn. "Still in fashion are the various baseball

caps and American-style T-shirts with random (随意的) English words printed on them," said Qing. Besides

sports shoes and T-shirts, styles and colors of school bags are another opportunity for students to express

their taste in fashion. Some bags are made more eye-catching by decorating (装饰) them with small hanging

dolls. Other fashionable items are the colorful drink containers which are now popular among girls this term.

"Some teachers are surprised to see a teenager sucking a bottle like this at school and criticized it as a childish

regression (退化). But some girls just love it," said Yang Rui, a Senior 3.

1. What does "a bunch of clones" (Para 2) mean? [ ]

A. All of the clothes are the same.

B. All of our exercises are the same.

C. We all look like twins.

D. We all have the similar fashions.

2. How do the girls show their personality at campuses? [ ]

A. They wear different sport shoes.

B. They wear school uniforms.

C. They have different decorations in their hair.

D. They drink water from colorful drink containers.

3. What are becoming fashionable for schoolboys according to this news story? [ ]

A. Nike and Adidas basketball shoes.

B. Baseball caps and American-style T-shirts.

C. Colorful drink containers.

D. Running shoes.

4. The writer of this newspaper article wants to _____. [ ]

A. call for the schools to pay attention to students' wear

B. report students' great love for fashion

C. criticize a childish regression at campuses

D. discuss about school uniforms

判断题