– What’s wrong with your ipad2? The sound ____is not clear.

--Yes. It has been broken for some time.

A．come out

B．coming out

C．to come out

D．came out

关于石膏绷带固定的护理错误的是

A．观察肢端血运

B．抬高患肢

C．勿使用止痛剂

D．包扎后10～20分钟内垫妥肢体防折断

E．病人诉石膏型内疼痛应予棉花填塞