— What colour is it?

— __________________

A. It's a book.

B. It's pink.

C. It's in the desk.

肿瘤内常有钙化的神经胶质瘤是（）

A.星形细胞瘤

B.室管膜瘤

C.少突胶质细胞瘤

D.髓母细胞瘤

E.多形性胶质母细胞瘤