问题
单项选择题
有关β受体阻滞剂在心衰治疗中正确的说法是
A．所有NYHAⅠ—Ⅲ级的慢性收缩性心衰患者均必须应用，且终身使用
B．短期内虽不能改善患者症状，但长期应用能降低心力衰竭患者死亡率
C．使用β受体阻滞剂后，患者心衰症状加重应立即停药
D．β受体阻滞剂要在ACEI前加用
E．β受体阻滞剂具有负性肌力作用不能用于心功能Ⅳ级的患者
答案
参考答案：B
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有关β受体阻滞剂在心衰治疗中正确的说法是
A．所有NYHAⅠ—Ⅲ级的慢性收缩性心衰患者均必须应用，且终身使用
B．短期内虽不能改善患者症状，但长期应用能降低心力衰竭患者死亡率
C．使用β受体阻滞剂后，患者心衰症状加重应立即停药
D．β受体阻滞剂要在ACEI前加用
E．β受体阻滞剂具有负性肌力作用不能用于心功能Ⅳ级的患者
参考答案：B
| Cloze test. | ||||
| People in communities have slowly been pushed apart through the years, mostly because people simply aren't taking the time to say a simple "hello." After considering this phenomenon, I decided I was going to 1 the way I was doing things. My 2 came one morning when I was in the community library. I passed by a girl who 3 her books out of her locker. Thinking like most that someone else would help her pick them up, I continued my way. However, when I had to 4 because I stupidly forgot my book, I noticed she had just finished packing them up by herself. No one had stopped to 5 her. "OK," I thought to myself, "this is where I should have changed." My best opportunity came a few days later when I saw a man 6 by himself waiting for the library to open, so I sat down next to him and began a 7 . It was difficult to get started, and even when I had to say goodbye, almost every 8 from my new friend had a tone (语气) of doubt in it. And who could blame him? People aren't used to making an 9 chat with a stranger. But a change, no matter how 10 it is needed, doesn't just happen. It takes people like us to make it possible. I 11 you to take a small step out of your comfort zone and try to make someone's day a little brighter. Together, we can really make society come 12 as a whole. | ||||
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