Two parallel group trials found no significant difference in machine usage, whereas a cross-over study found a significant difference.
两项平行组别试验未发现机器使用有意义的差异，然而，一项交叉试验显示有意义的差异。
A month after the training was over, study participants were invited back on-line and their working memory and alcohol intake was assessed once again.
训练结束一个月后，实验参与者被邀请上线，对他们的工作记忆、酒精摄入量进行再次测量。
Over-study hath done this, and somewhat too much of confinement.
这是过度学习和过度限制造成的。
Over-study hath done this, and somewhat too much of confinement.
这是过度学习和过度限制造成的。
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