问题
单项选择题
胸膜腔内压的负值大小取决于
A．肺内压与胸膜腔内压之差
B．肺内压与大气压之差
C．大气压与肺回缩力之差
D．呼吸肌的舒缩
E．肺回缩力
答案
参考答案：E
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胸膜腔内压的负值大小取决于
A．肺内压与胸膜腔内压之差
B．肺内压与大气压之差
C．大气压与肺回缩力之差
D．呼吸肌的舒缩
E．肺回缩力
参考答案：E
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（2）不要逐字逐条翻译，要组成一篇通顺连贯的短文。 | ||||||
| Dear friends, May I have your attention, please? Now I'd like to make a speech here. With the improvement of living standard, there are a lot of wastes on campus. Forexample, the students___________________________________________________________________ __________________________________________________________________________ Therefore, I'm sure, with everyone doing his bit we will change the present situation for thebetter. That's all. Thank you! |