选择题：以下（　）是招标采购阶段的合同管理的内容。

Refer to the figure below. The opportunity cost of making an additional salad:这是一个关于微观经济学 中国大学MOOC微观经济学的相关问题，下面我们来看答案是什么，Refer to the figure below. The opportunity cost of making an additional salad:A.decreases as the number of salads increases.B.remains constant regardless of how many salads are mad

Refer to the figure below. If this restaurant goes from producing 20 to 25 pizzas per hour, then which of the following statements is true?这是一个关于微观经济学 中国大学MOOC微观经济学的相关问题，下面我们来看答案是什么，Refer to the figure below. If this restaurant goes from producing 20 to 25 pizzas per hour, then which of the following statements is true?A.It has to give up fewer than 12.5 salad

Refer to the figure below. As the production of pizza increases, the opportunity cost of producing pizza:这是一个关于微观经济学 中国大学MOOC微观经济学的相关问题，下面我们来看答案是什么，Refer to the figure below. As the production of pizza increases, the opportunity cost of producing pizza:A.doesn’t change.B.increases.C.decreases.D.become negative.正确答案：increases.

评标委员会一般按照择优的原则推荐（　　）名中标候选人。 A.1～3 B.Z C.1 D.1～2

Refer to the figure below. Which of the following is true?这是一个关于微观经济学 中国大学MOOC微观经济学的相关问题，下面我们来看答案是什么，Refer to the figure below. Which of the following is true?A.Points B, C, E and F are efficient.B.Point A is efficient because it is farthest from the origin.C.Point D is efficient