眼的屈光装置包括哪些结构?
参考答案:
眼的屈光装置包括:角膜、房水、晶状体和玻璃体。
The 3G cellphone must be of great use and convenience to wants to get the information through the Internet quickly.
A.which
B.whomever
C.whichever
D.whoever
Ⅱ型呼吸衰竭的呼吸功能改变为()
A.肺弥散功能障碍
B.通气/血流比例失调
C.机体氧耗量增加
D.肺泡通气不足
E.肺动-静脉样分流增加