刺激引起兴奋的基本条件是使跨膜电位达到（）
A.阈电位
B.锋电位
C.负后电位
D.正后电位
E.局部电位
参考答案：A
We didn't want to do the work like that, but it ________ very well. [ ]
A. worked out
B. works out
C. working out
杏苏散的君药有（）
A.半夏
B.茯苓
C.陈皮
D.杏仁
E.枇杷叶
