________ he failed again in the driving test? He had practised enough.      [ ]

A. What if                            

B. How come    

C. Only if                            

D. As if

女性，32岁，结婚5年不育，两年来月经量少，近3个月闭经，伴低烧；妇科检查子宫稍小，活动欠佳，两侧宫旁组织增厚，右侧有4cm×4cm×6cm肿物，轻度压痛；子宫输卵管碘油造影显示输卵管呈串珠样改变。首选的治疗措施是（）

A.丹那唑口服

B.中药活血化瘀

C.静脉点滴青霉素

D.系统抗结核治疗

E.剖腹探查术