—Have you finished your project, Cathy?

—Not yet. My computer        .

A．is still being fixed

B．is not fixing

C．has already been fixed

D．has not fixed

绞窄性腹外疝及小肠扭转所致的肠梗阻多见于（）。

A．新生儿

B．2岁以内小儿

C．3岁以上儿童

D．青壮年

E．老年人