诊断恶性胰岛细胞瘤最可靠的指征是（）
A.侵犯包膜
B.病理性核分裂象
C.淋巴结转移
D.出现大片坏死
E.Ki-67高表达
参考答案：C
Daniel is a ___________ football player. He plays football ___________.
A．good; good
B．well; well
C．good; well
D．well; good
喇嘛 lǎ mɑ
