—Natalia Partyka has just beaten Li Jiawei!

—It's hard to      a girl with only one arm can play ping-pong so well.[ ]

A. imagine    

B. realize    

C. know      

D. find

女性胃癌患者出现Krukenberg瘤最可能原因为（）

A.直接蔓延

B.淋巴结转移

C.血行转移

D.种植转移

E.呼吸道转移