--He got the first prize in his math contest.

--Yes, I wondered how he did ____________.

A．make to it

B．make successes

C．make to

D．make it

皮肌炎肌肉基本病理变化不包括下列哪项（）。

A.肌纤维变性

B.间质血管周围炎性病变

C.肌肉纤维化

D.胶原纤维间粘蛋白沉积

E.肌肉萎缩