器质性脊柱侧凸的原因有()
A.先天性脊柱发育不全
B.营养不良
C.肌肉麻痹
D.慢性胸膜肥厚粘连
E.肩部及胸廓畸形
参考答案:A, B, C, D, E
My little sister is as _____________ as a flower. [ ]
A. lovely
B. love
C. lover
淀粉的液化