有关膝关节的说法,错误的是
A. 由股骨下端和胫骨上端组成
B. 关节腔内有前、后交叉韧带
C. 主要进行屈、伸运动,当半屈位时还可作小幅度的旋转运动
D. 关节囊周边有韧带加强
E. 关节囊内有交叉韧带
1. showing a hopeless sense that a situation is so bad as to be impossible to deal with
2. the ability not to be affected by something, especially adversely
3. a serious disease which is infectious and can attack many parts of a person's body, especially their lungs