—I didn’t do well in physics.

—I did          you; so we are half and half.

A．not worse than

B．no worse than

C．not better than

D．no better than网科

下列"结肠癌"的造影表现，哪项也可见于良性病变（）

A.环堤

B.半月征

C.结肠壁局限性僵硬

D.苹果核征

E.充盈缺损