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[单选题]
心电图PR间期进行性延长，直至P波不能下传。首先考虑的诊断是( )
A
窦性停搏
B
房性早搏
C
二度房室传导阻滞
D
一度房室传导阻滞
E
室性早搏
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参考答案
试题答案：
C
答案解释：
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完全胃肠外营养(TPN)患者，一般每天需要的热量是(??)
胃肠平滑肌的节律性收缩频率主要取决于
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1.
Morgan Rees has always been a good businessman. He used to own three petrol stations and was busymost of the time. When he was 65, the normal retirement age, he decided that he didn't want tostop, so he carried on working for another two years. Eventually, when he was nearly 68, his wife,Dolly, asked him to retire because she wanted to enjoy their old age together. Reluctantly, hehanded over the business to his son.But he was unhappy. He didn't know what to do with himself. Although he read a lot of books and hewent on holiday to interesting places with his wife, he was bored and began to get depressedbecause he hated being retired.Then one day he saw an advertisement in the newspaper and, without telling his wife, he bought asmall crockery (陶器) factory. The next week he told his family. They were horrified and worried.They thought he was too old at 71 to start work again.He is now 76 and he has expanded the company considerably. He has increased the number of stafffrom 6 to 24 and he has found many new customers for the products. He has developed the exportmarket and has improved profits by 200%. He has opened a new design office and employed three youngdesigners. They have been all over the world to get new ideas, and one of them has gone to Francethis week to a major trade fair. Most importantly, he hasn't been bored since he bought thefactory.
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24.我国居民的身份证编码采用的是
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He appeared well __________ (prepare) for the TV debate.
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