— There are too many "problem children" in our school. Many teachers are anxious about it.

     It will be a big problem. 

— That's right. What do you think ______? [ ]

A. should we do with the problem

B. should we deal with the problem

C. we should do with the problem

D. we should deal with the problem

唇部出血时可压迫

A．上颌动脉
B．面动脉
C．颞浅动脉
D．颈总动脉
E．唇动脉