问题
单项选择题
以下叙述中错误的是______。
A.C程序中的#include和#define行均不是C语句
B.除逗号运算符外,赋值运算符的优先级最低
C.C程序中,j++;是赋值语句
D.C程序中,+、-、*、/、%号是算术运算符,司用于整型和实型数的运算
答案
参考答案:D
解析:评析:“%”是求余运算符,其两侧的数值只能为整型,所以它不能用于实型的运算,故选项D错误。
以下叙述中错误的是______。
A.C程序中的#include和#define行均不是C语句
B.除逗号运算符外,赋值运算符的优先级最低
C.C程序中,j++;是赋值语句
D.C程序中,+、-、*、/、%号是算术运算符,司用于整型和实型数的运算
参考答案:D
解析:评析:“%”是求余运算符,其两侧的数值只能为整型,所以它不能用于实型的运算,故选项D错误。
When I was 16 years old, a boy gave me an important gift. It was a . It was the early autumn of my first year at a middle school, and my old school was far away. a result, no one knew who I was. I was very , and afraid to make friends with anyone. Every time I the other students talking and laughing, I felt my heart . I couldn’t talk to anyone about my problems. And I didn’t want my parents to me. Then one day, my classmates talked with their friends, but I sat at my desk unhappily as usual. , a boy came into the classroom. I didn’t know he was. He passed me and then turned back. He me, without a word, but a smile. , I felt the touch of something bright and friendly. It made me feel happy and . That smile changed my life. I started to talk with other students and made friends. Day by day, I became to everyone in my class. The boy with the lucky smile has become my best friend now. One day I asked him why he smiled, but he couldn’t remember at me! I have been happy every day all the dark days have gone. I believe that the world is what you think it is. If you think you are lonely, you might always be alone. So smile at the world and smiles will come back to you.
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