I could________by the way she walked that her knee was still bothering her.[ ]

A．tell  

B．separate

C．divide  

D．find

下列哪种疾病胸部早期叮为晕轮征，后期为新月征（）

A.细菌性肺炎

B.肺炎衣原体肺炎

C.肺曲霉病

D.SARS

E.肺炎支原体肺炎