儿童鞍区最常见的肿瘤是（）。

A.畸胎瘤

B.胆脂瘤

C.颅咽管瘤

D.垂体瘤

E.生殖细胞瘤

Among ________ writers in the world, only a few will become famous later on in life, and ______ writer is Mo Yan, who has received the Nobel Prize for literature recently.

A．such many; such a

B．many such; such one

C．so many; one such

D．so many; such one