A. To be ignored. B. To show the effect of the independent variable. C. To prove the hypothesis wrong. D. To make the E. xperiment more complicated. 相关知识点: 试题来源: 解析 B。解析:对照组的目的是显示自变量的影响。选项 A 不对,对照组不是被忽略的;选项 C 错误,对照组不是为了证明...
A. To compare with the experimental group B. To make the experiment more complicated C. To waste time D. To make the E. xperiment more interesting 相关知识点: 试题来源: 解析 A。在科学实验中,对照组的作用是与实验组进行比较。B 选项“使实验更复杂”错误;C 选项“浪费时间”错误;D 选项“使...
解析 B。控制组在科学实验中是用来与实验组进行比较的,选项 B 正确。选项 A“prove the hypothesis”是实验组和控制组共同的作用,但单独说控制组是为了证明假设不准确;选项 C“create new ideas”不是控制组的作用;选项 D“make the experiment more fun”也不对。
B,The control group in a scientific experiment serves as a standard for comparison to assess the effect of the variables being tested. Option A is the overall aim of the experiment. Option C is a step after the experiment. Option D is incorrect as the control group does not introduce new...
书而转类记入划就书而转类记入划就In a scientific experiment, the control group is used to ___.书而转类记入划就
In the scientific experiment, the control group is used to ___ the experimental group. A. compare with B. compete with C. connect with D. communicate with 相关知识点: 试题来源: 解析 A。本题考查动词短语辨析。对照组是用来和实验组进行比较的,A 选项“compare with”表示“与……比较”;B 选...
In scientific research, a control group is often used. What is the purpose of a control group? A. To make the experiment more interesting B. To compare with the experimental group C. To confuse the researchers D. To waste time 相关知识点: ...
A. get more results B. make the experiment easier C. understand the relationship between variables D. save time 相关知识点: 试题来源: 解析 C。控制变量能帮助我们理解变量之间的关系。选项 A 得到更多结果不准确;选项 B 使实验更容易不是主要目的;选项 D 节省时间也不是控制变量的主要作用。反馈...
A. reduce errors B. increase complexity C. make it more difficult D. show off skills 相关知识点: 试题来源: 解析 A。控制变量对于减少误差至关重要。选项 B“increase complexity”增加复杂性,与控制变量的目的相悖。选项 C“make it more difficult”使实验更困难,不是控制变量的目的。选项 D“show off...
310.To succeed in a scientific experiment,. A.one needs being patient person B.patience is to need C.one needs to be patient D.patience is what needed10. To succeed in a scientific experiment,__ A.one needs being patient person B. patience is to need C.one needs to be patient D. ...