肾岩翻花的发生与哪一因素关系最为密切（）
A.包茎
B.性交不洁
C.遗传
D.营养不良
E.环境污染
参考答案：A
— Sorry, I made a mistake and took your book for mine.
— _______. [ ]
A. It doesn't matter
B. You should be careful next time
C. You are welcome
D. Pay attention to it next time.
1949年起义的"重庆"号巡洋舰原名为？
