不属于物流辅助配送模式的是().
A.委托送货
B.定点取货
C.固定送货点送货
D.直接配送到户
参考答案:D
I often saw the boys in the river.
A.swam
B.swimming
C.to swim
D.swim
雌激素受体(ER)与孕激素受体(PR)