输卵管结核特有病理改变是（）
A.急性子宫肌炎
B.子宫内膜炎
C.输卵管增粗，伞端外翻如烟斗嘴状
D.盆腔结缔组织炎
E.输卵管卵巢囊肿
参考答案：C
That's _____ English book. _____ my book. [ ]
A. a; It's
B. an; It's
C. a; Its
D. an; Its
颈椎椎间盘CT扫描的层厚/层距通常为
A．10/10mmB．8/8mmC．5/5mmD．2～3/2～3mmE．1/1mm
