问题 单项选择题 A1/A2型题

下列哪类药物对逆转左室肥厚、改善舒张功能无效()。

A.硝酸酯类

B.ACEI类

C.钙拮抗剂类

D.β受体阻滞剂类

E.醛固酮拮抗剂类

答案

参考答案:A

解析:本题考点:心功能不全的药物治疗硝酸酯类药物的基本药理作用是直接松弛平滑肌,尤其是血管平滑肌,对小静脉血管的舒张作用较小动脉更为持久。对心肌无明显直接作用。由于容量血管舒张,静脉回心血量减少,心脏每搏输出量和每分输出量都减少,使血压降低(收缩压更明显)。

填空题
填空题

阅读下面短文,根据以下提示:1)汉语提示,2)首字母提示,3)语境提示,在每个空格内填入一

个适当的英语单词,并将该词完整地写在右边相对应的横线上。所填单词要求意义准确,拼写正确。

Dear Mr. Wang,

     I'm glad to tell you I'm back in London and how pleased I am to 1. ______ met you and your family during

my stay in your beautiful town. What pleased me most was the visit 2. ______ the museum and the old country

houses. I'd really like to keep in 3. t______ with all of you and I hope you won't mind 4. ______ (写信) to me

again. 

     In fact, I didn't have as good a journey as 5. ______ (预科). There were some weather problems, 6. ______

caused the delay of my flight. Then I had to 7. c______ planes in Berlin. And something 8. ______(令人失望的)

happened to my luggage. When I got to London, it was 9. s______ left in Berlin. Anyway, please accept my

thanks again and give my best 10. r______ to your family.

                                                                                                                                       Yours sincerely,

                                                                                                                                        Martin Jacobs