解析 A。解析:在实验中,由科学家改变的变量被称为自变量。选项 B“dependent variable”是因变量,是随着自变量的变化而变化的变量。选项 C“control variable”是控制变量,保持不变以确保实验的准确性。选项 D“constant variable”是常量变量,也是保持不变的变量。
In a scientific experiment, the variable that is changed by the scientist is called ___. A. dependent variable. B. independent variable. C. control variable. D. constant. 相关知识点: 试题来源: 解析 B。在科学实验中,被科学家改变的变量称为自变量。选项 A 因变量是随着自变量的变化而变化的;选...
In a scientific experiment, the variable that is changed by the scientist is called t
解析 A。本题考查科学实验中的变量概念。在科学实验中,由实验者改变的变量称为自变量(independent variable);因变量(dependent variable)是随着自变量的变化而变化的变量;控制变量(control variable)是保持不变的变量;常数(constant)是固定的值。反馈 收藏
相关知识点: 试题来源: 解析 A。在科学实验中,由实验者改变的变量叫自变量,即“independent variable”;选项 B“dependent variable”是因变量;选项 C“control variable”是控制变量;选项 D“experimental variable”不是特定的专业术语。所以答案是 A。反馈 收藏 ...
In an experiment, the variable that is changed by the scientist is called the ___.
题目 英语翻译A variable is anything that can vary,i.e.changed or be changed,such as memory,attention,time taken to perform a task etc.中文意思? 相关知识点: 试题来源: 解析 变量指的是任何一个可变的东西.举例: 变化了的和被变化的,如记忆,注意力,完成一个任务所需的时间等. 反馈 收藏 ...
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is that variables don't automatically update. For example, they can use a variable to store the number of customer invoices using OnStart for the app. Then in the app, the user creates a new invoice. The variable doesn't distinguish the number of invoices in the system that ha...
In the context of scientific experiments, avariableis any factor that could change or be changed. So, for instance, if you’re measuring how effective a medication is,variablescould include the amount of dosage, how frequently it’s taken, and the characteristics of each test subject, such as...