问题
单项选择题
女性，35岁，诊断风湿性心脏病，重度二尖瓣狭窄，突发心悸、呼吸困难、咳粉红色泡沫痰。查体：BP90/70mmHg，端坐呼吸，双肺满布湿啰音，心率155次／分，第一心音强弱不等，节律不齐。给予毛花苷C0.4mg静脉滴注，目的是（）
A.增加心肌收缩力
B.减慢窦率
C.纠正房颤
D.降低心室自律性
E.减慢心室率
答案
参考答案：E
搜题请搜索小程序“爱下问搜题”
女性，35岁，诊断风湿性心脏病，重度二尖瓣狭窄，突发心悸、呼吸困难、咳粉红色泡沫痰。查体：BP90/70mmHg，端坐呼吸，双肺满布湿啰音，心率155次／分，第一心音强弱不等，节律不齐。给予毛花苷C0.4mg静脉滴注，目的是（）
A.增加心肌收缩力
B.减慢窦率
C.纠正房颤
D.降低心室自律性
E.减慢心室率
参考答案：E
A man who knows how to write a personal letter has a very powerful tool.A letter can be enjoyed, read and ____.It can set up a warm conversation between two people far apart(远离的)；it can keep a ____with very little effort. I will give___.A few years ago my older brother and I were not getting____.We had been close as____but had grown apart.Our meetings were not____； our conversation was filled with arguments and quarrels; and every effort to clear the air seemed to only ___our misunderstanding.Then he____a small island in the Caribbean and we___touch.One day he wrote me a letter.He described his island and its people, told me what he was doing, said how he felt, and encouraged me to____.Rereading the letter, I was____by its humor(幽默)and clever expressions.These were all qualities for which I had____respected my older brother but____he no longer had them.I had never known he could write so____.And with that one letter we became friends____. It might never have occurred to____to write me if he had not been in a place where there were no___.For him, writing was a necessity.It also turned out to be the best way for us to get back in touch.Because we live in an age of____communication(通讯), people often____ that they don't always have to phone or email.They have a____.And that is to write.
|