The famous actress became________，and couldn't say a word when asked about her father，who

passed away only last month.[ ]

A．choked  

B．frightened

C．swelled  

D．squeezed

纤溶酶原激活物抑制因子（）

A.参与止血过程

B.参与凝血过程

C.参与纤溶激活过程

D.参与纤溶抑制过程

E.参与抗凝过程