患者男，43岁，风湿性心脏病史多年。近1周活动后出现心慌、心悸，胸闷明显伴气促。查体：血压140/50mmHg，心率100次/min，S₁正常，S₂稍增强，胸骨左缘第3肋间可闻及舒张早期叹气样杂音，X线见心影扩大，以左心室增大为主，双肺淤血征，超声心动图提示风湿性主动脉瓣关闭不全（重度）。

心力衰竭发作期间，以下药物最有效的是（）

A.多巴胺

B.多巴酚丁胺

C.哌唑嗪

D.硝普钠

E.利尿剂

句型转换.

1. I have some story books. (改为否定句)

    I _________ have _________ story books.

2. Miss Wang likes playing sports every day. (改为一般疑问句)

    _________ Miss Wang _________ playing sports every day?

3. She often swims with her friends at the pool. (用now改写)

    She _________ _________ with her friends at the pool.

4. Tom is reading a book now. (画线部分提问)

     _________ _________ Tom _________ now?

5. She usually does homework at ten o'clock. (画线部分提问)

     _________ _________ she usually do homework?

6. Our school has twenty classes. (同义句改写)

     _________ _________ twenty classes _________ our school?

7. like, I, the, going, my, movies, to, with, friends. (连词成句)

    _________________________________________________