血浆半衰期最长的强心苷类药物是（）
起效最快、半衰期短的强心苷类药物是（）
通过抑制磷酸二酯酶，升高cAMP水平，加强心肌收缩力的非苷类药物是（）
通过阻断β受体，同时具有血管扩张作用的非苷类药物是（）

A.地高辛

B.洋地黄毒苷

C.米力农

D.卡维地洛

E.毒毛花苷K

句型转换。

1. Mr. Green likes playing tricks on others. (同义句)

    Mr. Green likes playing _______ _______ on others.

2. Christmas Day is December 25th. (对划线部分提问)

    _______ _______ is Christmas?

3. He comes back. I tell you at once. (改成条件状语从句)

    If he _______ back, I _______ you at once.

4. I found many candies and toys in it. I got up in the morning. (用when合并两个句子)

    _____________________________________________________________.

5. Is there any interesting festival in your hometown? (作肯定回答)

    ______________________________________________________________.