— Your mum is very kind.

— Yeah, My mum is pretty considerate, you know what _____, she always arranges everything around me. [ ]

A. she means

B. you mean

C. I mean

D. we mean

牙齿松动与下述哪项因素关系不大（）

A.牙槽骨吸收

B.创伤

C.牙周韧带的急性炎症

D.女性激素水平变化

E.牙龈重度炎症