Those in the control group not only didn't see a grade increase, they had lower grades than the grading before the study began.
对照组的学生不仅成绩没有提高，而且比研究开始前的成绩还要低。
In fact, girls who received the intervention matched and even slightly exceeded the boys in math grades, whereas girls in the control group performed well below the boys.
事实上，那些经过干预性比赛的女孩的数学成绩可以超过男生，而在另外一组中的女孩成绩是低于男孩的。
A many grades hybrid adaptive controller is designed, the problem that high step and complicate controlled object is unstable in tradition adaptive control system is solved.
设计了一种多极混合自适应控制器，解决了高阶复杂被控对象在以往的自适应控制中出现的不稳定问题。
Access control is extremely important within a hierarchy in which users and their information are divided into several security grades.
在等级系统中，用户以及他所拥有的信息严格分成若干个安全等级，这种系统中的访问控制问题非常重要。
Results: There were differences in the indexes between different strains of laboratory rats and between same strain and different microbe control grades of laboratory rats.
结果：不同品系、同品系不同微生物等级的实验大鼠间在某些指标上有一定的差异。
Results Grades of the NBNA in the neonates with intrauterine hypoxia are lower than that of control group especially in behavioral function and initiative muscular tension.
结果有宫内缺氧史的新生儿其神经行为评分明显低于对照组，主要减分项目为行为能力和主动肌张力。
Results Grades of the NBNA in the neonates with intrauterine hypoxia are lower than that of control group especially in behavioral function and initiative muscular tension.
结果有宫内缺氧史的新生儿其神经行为评分明显低于对照组，主要减分项目为行为能力和主动肌张力。
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