鼻咽癌的好发部位为()
A.咽鼓管圆枕
B.鼻咽顶壁
C.梨骨后缘
D.咽隐窝
E.以上都不是
参考答案:D
Wuhan and Chongqing are among the most important cities in China ________ their size and population.
A.in terms of
B.in case of
C.in view of
D.in favor of
下列变化对肌红蛋白和血红蛋白的氧亲和力有什么影响
肺中CO2分压从45 torr降到15 torr;