The new stadium being built for the next Asian Games will be ________ the present one.[ ]

A. as three times big as  

B. three times as big as

C. as big as three times  

D. as big three times as

对长骨的描述哪些是正确的（）。

A.体呈管状，多分布于四肢

B.具有两端一体，前者膨大称骺

C.骨体内空腔为髓腔，终生含红骨髓

D.幼年干骺间有骺软骨

E.体的一定部位有滋养孔，为血管出入的通