Denis三柱理论中,后柱不包括()
A.后纵韧带
B.棘间韧带
C.横突
D.椎板
E.黄韧带
参考答案:A
I always have so many things to ________ when I come into the office after a trip abroad.
A.add to
B.attend to
C.contribute to
D.appeal to
优良的仓库处理设备必须满足“移动路程最短,存储空间占用最少,人工控制程度最低”的要求,而且在成本花费方面,必须能够做到最低的成本开支。( )