患儿女，2岁，因“出生后即出现发绀，并逐渐加重”来诊。患儿有呼吸困难，无蹲踞现象。查体：有杵状指（趾）；HR110次/min，律齐，肺动脉瓣听诊区第二心音减弱，胸骨左缘闻及粗糙、响亮的收缩期杂音，心尖区闻及舒张中期隆隆样杂音。
如患者合并肺部感染，痰多，呼吸困难加重，错误的治疗方法是（）
A.吸氧
B.强心利尿药物
C.静脉应用抗生素
D.择期手术
E.祛痰药
参考答案：B
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| Life today is 1 than it was hundreds of years ago, but it has 2 some new problems. One of the biggest problems is pollution. We can see it, smell it, drink it, and 3 hear it. 4 has polluted Earth. The more people, the more .because there were not 5 people. Now man is slowly polluting 6 world. Air pollution is still the most serious among (在……之中) all kinds of pollution. It is bad for all 7 animals. It is caused by heavy traffic. It is said that the situations will be much better if people ride bikes 8 driving cars. When you are riding, there is no pollution. But even in developing countries, most people don't go to work by bike. It is not because bikes are expensive or people are tired if they ride to work, but because the roads for the cars become 9 , more people put away their bikes and go to work by car or by bus, then things are getting 10 . | ||||
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