硝酸异山梨醇酯治疗心绞痛的作用原理是() A.减慢心率,降低心肌收缩力,减少心肌耗氧

题型:单项选择题 B型题

问题:

硝酸异山梨醇酯治疗心绞痛的作用原理是()

A.减慢心率,降低心肌收缩力,减少心肌耗氧量

B.通过抑制钙离子进入冠脉、周围血管壁平滑肌细胞内而扩张冠脉及周围血管

C.抑制血小板聚集

D.改善心肌营养与代谢

E.扩张冠脉及外周血管,减轻心脏负担

考点:护理学主管护师循环系统疾病患者的护理循环系统疾病患者的护理题库
题型:单项选择题 B型题

Once there lived an old man. He liked gold (金子)better than anything else in the world. He often said, “If I have enough gold, I will be the happiest man in the world.”

One day when he was traveling in the desert(沙漠), the old man lost his way. He was very hungry and thirsty, but there were only rocks(岩石) and sand (沙子)around him. Just then, he found a bag lying on the sand. He hoped he would find water and food in it. He took up the bag and opened it. He saw that the bag was full(满的) of gold. He was so sad that he threw away the bag and began crying.

Now, the old man knew that there was something better than gold in the world.

小题1: The old man liked ____ best before he traveled in the desert.

A. food        B. water        C. gold

小题2: When he lost his way, he wanted to get ____.

A. some food and water  

B. some rocks and sand   

C. bags full of gold

小题3:What did he do with the bag? ______.

A. He didn’t take it up   

B. He brought it home   

C. He threw it away

小题4:The old man did not become the happiest man when he got the bag of gold because ____.

A. the bag was too small  

B. the gold wasn’t his   

C. he was very hungry and thirsty

小题5:In the end, the old man knew that gold was ____ in the world.

A. the best thing     

B. not the best thing  

C. better than anything

题型:单项选择题 B型题

针对全球气候变暖,我国应当采取的应对策略是                 (   )

①控制发达国家的碳密集产品和高能耗项目向我国转移

②将东部高能耗企业转移到中西部去发展

③加速调整产业结构,走“循环经济”的路子

④调整能源结构,加快风能、核能、潮汐能等新能源的开发

A.①②③

B.②③④

C.①②④

D.①③④

题型:单项选择题 B型题

杂交瘤单克隆制备时作为细胞融合剂的是 ()

A.DMSO

B.PEG

C.8-AG

D.TK

E.SDS

题型:单项选择题 B型题

注射麻醉药物后出现牙关紧闭,常见的可能原因是()。

A.患者因大张口出现闭口肌痉挛

B.麻醉药物注射入翼内肌内使肌肉处于收缩状态

C.患者既往患有癔症病史

D.患者心理因素张口困难

E.患者注射麻醉药物后出现咬肌间隙感染

题型:单项选择题 B型题

在爆炸危险环境中,应采用TN-C系统供电。

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