配货时,大多是按照入库日期的“( )”原则进行。
A.先进先出;
B.先进后出;
C.后进先出;
D.任其自然。
参考答案:A
化简:(2x-1)2-(3x-1)(3x+1)+5x(x-1).
It was from only a few supplies that she had bought in the village ______the hostess cooked such a nice dinner
A.where
B.that
C.when
D.which.