What is a variable in research? A. A constant value. B. A factor that can change. C. A research method. D. A conclusion from research. 相关知识点: 试题来源: 解析 B。选项 A,变量不是常量值。选项 C,变量不是研究方法。选项 D,变量不是研究得出的结论。
D. A variable is used for input while a constant is used for output. 相关知识点: 试题来源: 解析 B。变量和常量的主要区别是变量的值可以改变而常量不能。选项 A 变量和常量都可以存储数字和字符串;选项 C 常量和变量的声明位置不是主要区别;选项 D 变量和常量不是分别用于输入和输出。反馈 收藏 ...
this charming chair this checking process this cold is not enou this comes from exper this constant noise a this counts as steali this course provide this creative one this cruelty this day is born a sa this dense connective this deposit 5 this deposit 7 this domain this early morning this...
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百度试题 结果1 题目Which one of the following isnot a constant?A:a variableB:a fractionC:a real numberD:a decimal 相关知识点: 试题来源: 解析 A a variable 反馈 收藏
试题来源: 解析 B。解析:variable表示可变的、变量。选项A中changeable是易变的意思,与variable有相似含义;选项B中constant表示不变的、常量,与variable意思相反;选项C中adjustable是可调整的,与variable有相近意思;选项D中mutable是可变的,与variable意思相近,所以正确答案是B。
Constant Variables in Mathematics:In mathematics, variables are symbols, often letters, that we use to represent some unknown quantity. There are different types of variables in mathematics, and their type depends on what they are representing and how they behave. One such type of variable is a...
The value of constant pi is: 3.14286 Analysis Note the declaration of constant pi in Line 7. We use the const keyword to tell the compiler that pi is a constant of type double. If you uncomment Line 11 where the programmer tries to assign a value to a variable you have defined as ...
a巨川乡 Great Sichuan township[translate] a我记下了,谢谢 它是好的我的名字是Jatin[translate] aA variable whose value is an esriGeometryDimension constant. 价值是esriGeometryDimension常数的可变物。[translate]
Which of the following is an example of a constant? A. The value of a variable that changes every time the program runs. B. A number that is used in multiple places in a program but never changes. C. A string that can be modified by the user. D. A variable that is declared ...