患者，男，45岁。慢性心衰患者，服用洋地黄治疗，近一周因肺部感_爱下问搜题

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问题单项选择题 A1/A2型题

患者，男，45岁。慢性心衰患者，服用洋地黄治疗，近一周因肺部感染出现高热等，给以抗生素治疗。近两日患者心慌、气短加重，心率减慢，心电图示基底窄而高尖的T波，血清钾6.9mmoL/L，考虑为高钾血症给以对症治疗。在下列选项中，不宜使用的治疗措施是（）

A.碳酸氢钠液静脉缓慢注射

B.口服聚磺苯乙烯

C.葡萄糖酸钙静脉缓慢注射

D.腹膜透析

E.血液透析

答案

参考答案：C

完形填空

Christmas is over. And I got my wanted radio-controlled truck. But you would not believe the___36___ and work that went into getting this holy toy.
For over a month I stared at ___37___ magazines I received from my friend until I had made up my ___38___: I wanted a Pumpkin truck. I ___39___ to work immediately, dropping hints to my father about it.
My first job was to tell him about how the steering(操纵杆) on my old car didn’t ___40___, but he just blamed the problems on my bad ___41___.
My next plan would have to be more ___42___. “Look at this, Dad, the truck with controller and battery pack—all for only US$250!” You can’t ___43___ to miss out on this bargain!”
His ___44___ was that he certainly could afford to miss this ___45___ and for US$250 you could buy ___46___ educational like a telescope. “A telescope? To look at the moon? I’ll look at it when I’m 97 years old and living in a ___47___ home! This is my youth! I am supposed to run about.”
I went to my room, ___48___ at how mean(吝啬的) my father was. It was obvious that he didn’t ___49___ that I would die if I did not get the Pumpkin radio-controlled truck.
When I ___50___ on Christmas morning I wasn’t excited. I had been ___51___. I opened all my presents until there was just one big package ___52___. “The telescope,” I thought. I ___53___ the packaging and looked at the top of the box—it was a Pumpkin truck. I had ___54___! I loved my parents! I felt like I could do anything! I could ___55___ get an A+ in English class.

问答题简答题

纯化器出分子筛的CO₂超标的原因？