A.
肩关节外展>30°时,肩关节运动与肩胛骨旋转比为2:1。
B.
肩关节屈曲>60°时,肩关节运动与肩胛骨旋转比为2:1。
C.
肩关节屈曲>90°时,肩关节运动与肩胛骨旋转比为2:1。
D.
肩关节外展<30时,肩胛骨则固定于胸廓上。< /div>
E.
肩关节屈曲<60°时,肩胛骨则固定于胸廓上。< /div>
【单选题】What will happen in the rice market if buyers know there may be a rice shortage in the near future?
A.
The supply of rice will increase.
B.
The demand for rice will decrease.
C.
The demand for rice will increase.
D.
The demand for rice will be unaffected.