中静脉的特点，除外（）

A.管壁由内、中、外三层膜构成

B.内膜薄，内弹性膜不明显

C.外膜厚于中膜，有少量纵行平滑肌

D.中膜不发达，只有几层疏松的平滑肌

E.三层膜分界清楚

You'd better not read today's newspaper because there is          in it.     [ ]

A. something interesting      

B. anything new      

C. important thing            

D. nothing special