___________ speaking English well, the young girl can write good essays in the language.

A．Not only

B．Except

C．Unless

D．Besides

癌性空洞与结核性空洞鉴别的关键点在于前者（）

A.空洞较大

B.空洞周围可见纤维条索

C.空洞内有液平

D.空洞边界不清楚

E.洞壁凹凸不平，可见壁结节