存货策略的常用概念包括()
A.最高订货量
B.订货周期
C.最高库存量
D.安全库存量
参考答案:B, C, D
______ of that country _______ by snow.
A.Second thirds; is covered
B.Two thirds; is covered
C.Two thirds; are covered
D.Two third; covers
颞下颌关节紊乱病的诊断,不能采用下列哪一项()
A.病史询问
B.临床检查
C.许勒位及经咽侧位X线片
D.关节造影片
E.颞下颌关节区手术探查