问题
单项选择题
慢性肺源性心脏病（）
A．气体交换受损与缺氧、二氧化碳潴留、肺血管压力增高有关
B．气体交换受损与肺部感染引起呼吸面积减少有关
C．气体交换受损与肿瘤阻塞气道、继发感染有关
D．低效性呼吸形态与肺扩张能力下降、缺氧有关
E．低效性呼吸形态与支气管阻塞、通气和换气功能障碍有关
答案
参考答案：A
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慢性肺源性心脏病（）
A．气体交换受损与缺氧、二氧化碳潴留、肺血管压力增高有关
B．气体交换受损与肺部感染引起呼吸面积减少有关
C．气体交换受损与肿瘤阻塞气道、继发感染有关
D．低效性呼吸形态与肺扩张能力下降、缺氧有关
E．低效性呼吸形态与支气管阻塞、通气和换气功能障碍有关
参考答案：A
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| I had a summer camp with my classmates last year. Early in the morning, we 1 at the bus station. After saying 2 to our parents, we got on the bus. It 3 us more than two hours to arrive at the campground. It was the first time for us to he away from our 4 , so some of us started to feel homesick (想家的) 5 , when the evening party began, we felt happy again. The next day, everybody went to the boating class. At first, my friend and I worked hard, but the 6 wouldn't listen to us. Then the teacher taught us 7 to work together (共同). After many tries, we did much 8 . The swimming class was my favorite. It was 9 to stay in the cool water. The swimming teacher was a fury man, and he often made us 10 happily. I learned a lot of new things during the summer camp. I also learned how to look after myself. | ||||
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