Thenegative chronotropic response depended on timing of the stimulus burst within the car - diac cycle.结果心脏的负变时性反应取决于刺激猝发所在的心动周期时相.Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励.The identified dopa...
Books provide children with ideas and a stimulus for play.书不仅给孩子们以思想，而且使他们玩得更有意思。Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励.Poverty is a stimulus to industry.贫穷能使人勤劳....