下列哪种情况不宜用洋地黄制剂

A．病态窦房结综合征

B．应激综合征合并快速心房颤动

C．Ⅲ度房室传导阻滞

D．束支传导阻滞

E．肺心病

短语填空。

     I haven't (1)_______ (收到……来信) you for a (2)_______ (两周). I (3)_______ (渴望) your letter.

These days I am very busy. I am trying to (4)_______ (适应) these conditions. However, one thing is

(5)_______ (肯定的). My students (6)_______ (没有概念) of doing experiments. (7)_______ (前几天),

I showed them the weekly chemistry experiment, who had never (8)_______ (遇到) anything like this

before. So they fled. (9)_______ (说实话), I doubt whether I am (10)_______ (改变,有影响) to these

boys' lives at all.