具有拣货路线短，拣货效率高和便于库存管理等特点的是（）。
A.旋转式货架
B.重力式货架
C.通道式货架
D.移动式货架
参考答案：A
______ made him unhappiest of all was ______ he had nowhere to unburden himself.
A．What; what
B．What; that
C．That; what
D．That; because
暖休克
