将心肌细胞分为快、慢反应细胞主要根据动作电位的
A.0期去极速度B.1期复极速度C.3期复极速度D.2期复极速度E.4期自动去极速度
参考答案:A
The government has decided to ______ a special fund to support those poor kids.
A.set out
B.set off
C.set up
D.set about