It seems that the aged people _________ the H7N9 more easily from the recent cases.   [ ]

A. pick up      

B. mix up      

C. set up      

D. use up    

可出现脊髓神经牵拉或压迫的症状（）。

A.长期不治疗脊柱侧凸

B.不可逆性侧凸

C.S状脊柱侧凸

D.可逆性脊柱侧凸

E.脊柱侧凸已稳定