卵巢癌中放射高度敏感的肿瘤为（）。
A.卵巢未成熟畸胎瘤
B.卵巢上皮癌
C.无性细胞瘤
D.性索间质肿瘤
E.卵巢内胚窦瘤
参考答案：C
--Where is your mother?
-- She _________because she is ill.
A lies in the bed
B lying in bed
C is lying in bed
D lies in bed
急性肾炎应用青霉素是为了( )
A．防止交叉感染B．预防肾炎复发C．清除残余病灶D．治疗并发症E．治疗肾炎
