哪种疾病的球囊扩张治疗中最易发生食管破裂()
A.食管酸性物质灼伤后狭窄
B.碱性物质烧伤造成的食管狭窄
C.食管蹼
D.术后吻合口狭窄
E.贲门失弛缓症
参考答案:B
根据所给信息补全对话,每空一词。
Mary: Hi, Betty, can you come to my l. _______2. _______?
Betty: Sure. I'd 3. _______ 4. _______ 5. _______ 6_______ is it?
Mary: It's at 7. _______ on 8. _______
Betty: But where is it?
Mary: In 9. _______ house,4 New Street.
Betty: OK. I'm 10. _______soon.
蓄电池工作特性是指其放电电流在放电过程中随时间变化的规律。