使肩关节旋内的肌是（）。

A.冈下肌

B.小圆肌

C.大圆肌

D.胸小肌

E.胸大肌

— _____ that China has the largest number of mobile phone users.

— I believe so. It seems everyone has one. [ ]

A. Someone said

B. They told me

C. It is said

D. I was told