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问题 单项选择题

新生儿持续气道正压呼吸(CPAP)如压力过高可发生哪些后果( )

A．肺水肿
B．PaCO2增高
C．PaCO2降低，肺气肿
D．PaCO2增高，肺气肿，气漏
E．以上都不是

答案

参考答案：D

选择题

—Who told you to clean the windows?

—Father ______. He said they are too dirty. [ ]

A. told

B. did

C. had told

D. has told

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单项选择题 A1型题

混悬剂的质量评价不包括（）

A.粒子大小的测定

B.絮凝度的测定

C.溶出度的测定

D.流变学测定

E.重新分散试验
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