【单选题】A pasta manufacturer's purchase of some pet food brands is an example of
D.
unrelated diversification.
【单选题】下列哪一项不是维持生物生存所必需的条件 [ ]
【简答题】What kinds of food should you purchase last when you are shopping? ______and refrigerated foods.
【简答题】Food (purchase) ________ in the supermarket must not be delivered to the restaurant.
【简答题】Food (purchase) ________ in the supermarket must not be eaten at the restaurant.