Are you still here?You were here half an hour ago. Who        for?

A．were you waiting

B．did you wait

C．are you waiting

D．do you wait

骶耻外径的标志点在

A．耻骨联合上缘中点至髂后上棘连线中线下lcm

B．耻骨联合中点至米氏菱形窝中点

C．耻骨联合下缘中点至米氏菱形窝上角下1.5cm

D．耻骨联合上缘中点至米氏菱形窝下角

E．耻骨联合上缘中点至米氏菱形窝上角