问题
单项选择题
心-肺吸氧运动实验适用于（）
A.以上都不对
B.单纯左心衰患者
C.单纯右心衰患者
D.慢性稳定性心衰患者
E.急性心衰患者
答案
参考答案：D
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心-肺吸氧运动实验适用于（）
A.以上都不对
B.单纯左心衰患者
C.单纯右心衰患者
D.慢性稳定性心衰患者
E.急性心衰患者
参考答案：D
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when I was seven years old. She beat me every time for the first year. But then, on my 2_______ birthday, I won for the first time. I nearly always beat her now. To learn the rules doesn't take long. One 3_______ is enough. But if you want to be good, you have to practise for years. You don't need much to play chess-just a chess set and someone to play with. Chess sets can be very cheap, or quite expensive. Some people. 4_______ chess sets as a hobby, but I enjoy playing. There is a chess club in our school. We meet on Wednesday every 5_______ to practise. I am the best player in the club, and the captain of the school chess team. This year we won the All England Schools Championship (冠军赛). I'm saving up my money to 6_______ a chess computer. They are very expensive, but also very 7_______ for practice. That way, I'II always have someone to play with. I'mi sure I will be a world chess champion some day. |