His eyes were          Della, and there was        in them that she could not       .

A．fixed on; expression; read

B．fixing upon; expression; believe

C．fixed on; an expression; find

D．fixed upon; an expression; understand

正当理由是一般侵犯民事责任的抗辩事由之一，包括( )

A．自助行为

B．不可抗力

C．意外事件

D．受害人的过错