问题 单项选择题

某钙拮抗剂可抑制房室结传导,大剂量可致窦房结、房室结电活动消失,还可舒张冠状血管及外周血管,并可降低血压,在下列最可能的药物是()

A.地尔硫

B.维拉帕米

C.硝苯地平

D.氟桂利嗪

E.尼卡地平

答案

参考答案:A

解析:

地尔硫可抑制窦房结自律性,减慢房室结传导,适用于阵发性室上性心动过速。可增加冠脉流量,降低血压,适用于心绞痛、高血压的治疗。维拉帕米可抑制房室结传导,终止房室结的折返激动,治疗室上性和房室结折返激动引起的心律失常较佳,为首选药。能舒张冠状血管及外周血管,增加心肌冠脉流量,降低血压,可用于心绞痛、高血压的治疗。禁用于严重心衰及中、重度传导阻滞病人。硝苯地平可舒张冠脉,也舒张外周小动脉,主要用于心绞痛、高血压、肺动脉高压的治疗。尼卡地平是二氢吡啶类钙通道阻滞剂,降压作用同时改善脑血流量,主要用于高血压危象或急性脑血管病时高血压急症。氟桂嗪为外周血管扩张剂,能直接扩张血管

单项选择题
填空题

Blair Admits Never Having Sent Flowers to His Wife


British Prime Minister Tony Blair admitted on a television programme that he has never sent flowers to his wife Cherie and that he had a youthful crush on Hollywood beauty Grace Kelly.
Blair, who allowed Channel 4 interviewer June Sarpong to shadow him for two days last month, made other personal (1) when asked questions he rarely hears on the usual television political (2) .
During the interviews for a program targeting 18-30 year (3) , the prime minister admitted he sometimes has to "wing it" when (4) public appearances and that he yearns to go out for a drink (5) being recognised.
However, the most dramatic revelation was his reply to Sarpong’s (6) on whether he still sends his wife flowers, prompting his interviewer to (7) in disbelief. "I’ve never sent her flowers. If I sent her flowers, she would (8) worried," Blair said.
But he added: "I am romantic. There are other ways of (9) romantic."
Blair needed a few moments to recall which posters he had (10) his bedroom wall as a youngster, then revealed: "I’ll tell you... actually, (11) I was younger, I loved Grace Kelly."
Born in 1929, Kelly (12) in films like ’Dial M For Murder’, ’Rear Window’ and ’High Society’ in the mid-1950s, but (13) acting to marry Prince Rainier of Monaco in 1956, when Blair was (14) two years old.
Blair admitted he initially found it "odd" to be (15) minister and to be rushed in motorcades from appointment to (16) , and worried that his lifesty left him "a bit isolated" from (17) people.
He admitted that he was constantly on the phone between public (18) , and rarely had time to prepare for his next (19) , telling Sarpong: "I wing it all the time."
And he revealed he has to check himself before he replies to (20) questions from the public. "The worst thing is when someone is giving you a real earful and you think ’I’m going to say something I will regret’," he said.
Asked what he would do if he could be invisible for a day, Blair yearned for a more ordinary life, saying he would "just walk down the street and go to the pub... just be absolutely normal".