—Could you do me a favor to hand out these papers?

— ___.

A．Yes, I could

B．It’s my pleasure

C．With pleasure

D．Great

恶性肿瘤细胞最主要的形态特点是（）

A.核大

B.多核或异型核

C.核仁大

D.核染色浓染

E.病理性核分裂象