下列除哪项外均提示洋地黄中毒()
A.室性早搏二联律
B.多源性室早
C.心电图ST段呈鱼钩样下移
D.色视
E.心律由不规则突然变为规则
参考答案:C
__________ with the size of the whole earth,the highest mountain doesn’t seem high at all.
A.When compared
B.To compare
C.While comparing
D.It compared
行为塑造法的优点是可使奖励的数量与学生良好行为的数量、质量相适应。