有关地高辛的叙述,错误的是()。
A.口服吸收率差异大
B.有正性肌力作用
C.有负性频率作用
D.有阻Ca2+内流作用
E.安全范围小
参考答案:D
--- Hi, Torry, can I use your computer for a while this afternoon?
--- Sorry. ___________.
A.It’s repaired
B.It’s has been repaired
C.It’s being repaired
D.It’s had been repaired
霍尔效应