导游员发生错接事故属于（）。
A、将成事故
B、已成事故
C、责任事故
D、非责任事故
参考答案：C
裸病毒
When I enter this classroom, I always feel the ______ pressure of study, for I have so many opponents to compete with.
A．invisible
B．invaluable
C．insensible
D．impolite
