In the first experiment, they asked two groups of people to put 40 unimportant facts into a computer.
在第一个实验中，他们让两组人把40个不重要的事实输入电脑。
Scientists conducted an experiment on two groups of rats during pregnancy and lactation.
科学家们利用两组正在怀孕和哺乳期的大鼠进行对比试验。
In a separate experiment, 140 of the children were divided into two groups.
在单独实验中，140个孩子分为两组。
Meanwhile, a relevant comparative experiment about 'selective memorization' is also conducted on two groups of non-English majors.
与此同时，作者对其授课的两组非英语专业学生进行了记忆法的对比实验。
My favourite is a simple experiment in which two groups of participants get free sandwiches if they participate in the experiment - a doozie for any undergraduate.
我最喜欢一个简单的实验：两组同学参加这个实验，他们会得到免费的三明治，这对大学生来说绝对是一个好东西。
In one experiment, subjects were divided into two groups and told to perform a series of boring and repetitive tasks, some of which were impossible to complete.
在一项实验中，受试者分为两组，并告诉执行了一系列的枯燥，重复的任务，其中有些是不可能完成。
Under the experiment of waste reinjection column, the different treatment effects of concentrated liquid by two groups mineral waste were introduced.
采用柱回灌法进行实验，对两组矿化垃圾处理浓缩液效果对比。
During the experiment period of about four months (17 weeks), the two groups are treated differently by the teacher.
在四个月(约十七周)的实验期间，老师对两个班级进行不同的教法。
Methods: 76 patients were divided into two groups: experiment and control. Patients of experiment group were given Sodium Aescinate. Patients of control group were given Dexamethasone.
方法：选择76例外伤性面瘫的患者分为两组，治疗组给予七叶皂苷钠，对照组给予地塞米松。
Results (1) Animal experiment: After 8 weeks, the levels of lipids and tail blood pressure showed no differences between two groups.
结果(1)整体动物实验：治疗8周，治疗组血压、血脂与对照组比较无明显差异。
The mineral apposition rate was higher and the degradation of material was lower in experiment group than those in the other two groups.
与两对照组相比，实验组骨矿物质沉积率较高，植入物的降解速度较慢。
The mineral apposition rate was higher and the degradation of material was lower in experiment group than those in the other two groups.
与两对照组相比，实验组骨矿物质沉积率较高，植入物的降解速度较慢。
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