He would rather           his life than          damage done to state property.

A．lose; to see

B．to lose; see

C．to lose; to see

D．lose; see

急性毒性试验的主要毒性终点指标为

A．机体死亡

B．生理、生化异常改变

C．基因突变

D．染色体畸变

E．肿瘤形成