男性，40岁。患类风湿性关节炎合并肺间质纤维化，应用激素维持治疗中。近1周来咳嗽，痰稍带脓性，低热。2天前起气急逐渐加重，前来就诊。体检：明显气急、紫绀，两下肺广泛湿啰音。心率110次／分，律齐。动脉血气分析（呼吸空气）示pH7.48，PaCO24.0kPa（30mmHg），PaO26kPa（45mmHg）
采用机械通气，其通气形式宜采取（）。
A.负压通气
B.反比通气
C.高频通气
D.低潮气量、较快呼吸频率，或加用PEEP
E.较高潮气量、较慢呼吸频率
参考答案：D
| 任务型阅读。根据短文内容完成下列表格，并将完整单词写在答题卡对应题号的横线上。(每空一词) | ||||||
| Qian Xuesen was a rocket scientist. He was famous all over the world as the father of China’s space technology. He was born in 1911. On October 31, 2009, he passed away peacefully at the age of 98. When Qian Xuesen was three years old, his father got a job in the Ministry of Education in Beijing, so he and his family came to Beijing. Qian Xuesen graduated from Shanghai Jiao Tong University in 1934. In 1935, he went to the United States for further study. In 1950, he heard that the new China had been founded, he began to try his best to go back to his motherland. Although the American g  overnment tried to stop him from his journey, he succeeded in going back in 1955. Since 1958, Dr. Qian had devoted all his life to China's aerospace science and technology (航天技术) and made great achievements. He set up China's first missile-and-rocket-research institute (导弹、火箭研究机构), which later helped start China’s space program. He retired in 1991,the year before China's manned space program (载人航天计划) was started. His research formed the basis (基础) of the Long March CZ-2F rocket that carried astronaut Yang Liwei into orbit in 2003. | ||||||
| Qian Xuesen—the 1._____ of China’s space technology | ||||||
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