价值链模型把公司所有的活动划分为主要活动和辅助活动。
参考答案：对
I remember you came to see me ____ a cold Tuesday evening. [ ]
A. in
B. at
C. on
D. for
－These peaches really juicy.
－They ____ be! Just see the price, $3,99 a pound. Very expensive, aren’t they!
A．would
B．could
C．might
D．should
