What a strange man! He loves his wife, but _____ he often beats her.

A．at a time

B．at one time

C．at times

D．at the same time

下列治疗支气管哮喘的药物中不属于肾上腺皮质激素的是（）

A.可的松

B.莫米松

C.地塞米松

D.二丙酸倍氯米松

E.酮替芬