问题
单项选择题
关于强心苷的作用，下述哪种说法是错误的
A．正常人用药后血管阻力升高
B．心衰病人用药后血管外周阻力下降
C．用药后，通过正性肌力作用使心输出量增加
D．抑制肾小管细胞Na+-K+-ATP酶
E．增加肾小管对Na+的再吸收
答案
参考答案：E
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关于强心苷的作用，下述哪种说法是错误的
A．正常人用药后血管阻力升高
B．心衰病人用药后血管外周阻力下降
C．用药后，通过正性肌力作用使心输出量增加
D．抑制肾小管细胞Na+-K+-ATP酶
E．增加肾小管对Na+的再吸收
参考答案：E
One can have many experiences, but the one I never forget is my bicycling trip in Taiwan. When we were going to 46 school, my teacher suggested that we could do something special to remember our school life. After a long discussion, we decided to travel 47 the whole island by bicycle. We began to get some training to make our 48 stronger. So we ran 3,000 meters after school. At first, I could only ran about 2,000 meters. My legs were heavy like steel and my heart 49 very fast. After two weeks of training, I could run 3,000 meters 50 . We started our journey the last week of July. We rode about 100 kilometers 51 . It was very hot and our clothes were 52 all the time. One day, we were riding up the mountain when there were 53 wrong with my bicycle, and I fell and was hurt. I almost gave up and didn’t want to 54 the trip, but I tried to solve the problems successfully and kept on. Fifteen days passed, we returned to school again. We were so 55 . This experience was like a miracle for me. I learned that I could do what I want to.
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