特级列检作业场对编组列车发车前可施行一次（）。
A.全部试验
B.简略试验
C.持续一定时间的全部试验
D.试验
参考答案：A
— What do you usually do in the afternoon, Mrs. Smith?
— My afternoon ______ includes doing some shopping and walking my dogs. [ ]
A. appointment
B. action
C. routine
D. reservation
对放疗极敏感的卵巢肿瘤是（）
A.成熟囊性畸胎瘤
B.未成熟畸胎瘤
C.颗粒细胞瘤
D.无性细胞瘤
E.内胚窦瘤
