A global variable is a programming language construct, a variable type that is declared outside any function and is accessible to all functions throughout the program. A group of global variables is called a global state or global environment because when combined, they define various aspects of ...
(a) What is a global variable? (b) Define a global constant. Variables & Constants In programming, an identifier represents the name for a value. For example, suppose we write an expression as: A = 40 Here, A is the identifier holding the value 40. An identifier can be a variable...
D. The variable that is observed. 相关知识点: 试题来源: 解析 B。原因:文章中提到“In an experiment, researchers manipulate an independent variable and observe the effect on a dependent variable.”,即在实验中,研究者操纵自变量并观察其对因变量的影响,所以自变量是被操纵的变量。
A. The variable that is being measured. B. The variable that is manipulated by the researcher. C. A constant value. D. A research method. 相关知识点: 试题来源: 解析 B。选项 A,被测量的是因变量,不是自变量。选项 C,自变量不是常量值。选项 D,自变量不是研究方法。反馈...
What is a variable used for in programming? A. To store a value. B. To execute a function. C. To create a loop. D. To define a class. 相关知识点: 试题来源: 解析 A。变量在编程中是用来存储一个值的。B 选项执行函数不是变量的作用。C 选项创建循环也不是变量的功能。D 选项定义类也...
A. The variable that is changed by the experimenter. B. The variable that changes in response to the independent variable. C. The variable that is kept the same. D. The variable that is not important. 相关知识点: 试题来源: 解析 A。在实验中,自变量是由实验者改变的变量。选项 B 是因变量...
The Cepheid Variable are named because the prototype of this star class is Alrediph or as its also known Delta Cepheii. The prototype is the first of its type to have been discovered. It is a variable star whose variability can be seen with the naked eye. Over around five days, the ...
What is the difference between non local variable and global variable?回答1"nonlocal" means that a variable is "neither local or global", i.e, the variable is from an enclosing namespace (typically from an outer function of a nested function). An important difference between nonlocal and ...
百度试题 题目下列( )是不合法的变量名。 A. 2variable B. variable2 C. whatavariable D. $another 相关知识点: 试题来源: 解析 A.2variable 反馈 收藏
ABoolean variablehas only two possible values: true or false. Examples: Is it daytime? Is the game over? In MakeCode, aposition variableis a special kind of variable that holds three numbers that describe a specific location in three-dimensional space. These numbers are called theX, Y, and...