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【单选题】
若有以下说明语句: struct stu { char n1[8]; char n2[10]; int age;}stud; 则下面的叙述不正确的是: ( )A.
struct是结构体类型的关键字
B.
struct stu是用户定义的结构体类型
C.
n1,n2,age 都是结构体成员名
D.
stud是用户定义的结构体类型名
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【单选题】下列关于算法的叙述中,错误的是( ).
A.
算法是问题求解规则(方法)的一种过程描述,在执行有穷步的运算后结束
B.
算法的设计一般采用由细到粗:由具体到抽象的逐步求解的方法
C.
算法的每一步运算必须有确切的定义,即必须是清楚明确:无二义性的
D.
分析一个算法的好坏,要考虑其占用的计算机资源(如时间和空间)数量:算法是否易理解:易调试和易测试等
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【简答题】Traffic lights are very important for us. I think you know this. But do you know how they were born? Garrett A. Morgan was the father of traffic lights. He was an American. His family was very poor. H...
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