夹板外固定的原理,包括()。
A、束带对夹板的约束力
B、夹板的侧方挤压力
C、压垫的效应力
D、肌肉收缩活动时的内在动力
E、肢体重力对骨折断端的效应力
参考答案:A, B, C, D
正规的工作文档获取途径为从()获取。
A.ftp服务器
B.tsm.zte.com.c
C.support.zte.com.c
D.pal.zte.com.c
Speaker A: Excuse me, do you need a hand Speaker B: ______
A.Oh, yes, please. I haven't used one like this before.
B.No, thank you. I don't need another hand.
C.Sorry, do you know how to do this exercise
D.of course. I need a hand.