选择题：Moe divides his time between studying Physics and studying Economics. His production possibilities curve for his final grade in each class is shown below. If Moe moves from Point A to point C, his grade in Physics will go down by __ his grade in economics

Moe divides his time between studying Physics and studying Economics. His production possibilities curve for his final grade in each class is shown below.The Principle of Increasing Opportunity Cost is reflected in the fact that the opportunity cost going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，Moe divides his time between studying Physics and studying Economics. His production possibilities curve for his final grade in each class is shown below.The Principle of Increasin

下列关于民事责任的说法中，错误的是（ ）。A.赔礼道歉属于民事责任的承担方式 B.二人以上依法承担按份责任，能够确定责任大小的，平均承担责任 C.二人以上依法承担按份责任，难以确定责任大小的，各自承担相应的责任 D.因不可抗力不能履行民事义务的，不承担民事责任 E.资质的出借方与借用方对建设工程质量不合格承担连带赔偿责任

Moe divides his time between studying Physics and studying Economics. His production possibilities curve for his final grade in each class is shown below.Moe needs to earn at least an 80 in both economics and physics to keep his scholarship. Given his cur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，Moe divides his time between studying Physics and studying Economics. His production possibilities curve for his final grade in each class is shown below.Moe needs to earn at least

Refer to the figure below. For the nation whose PPC is shown, it must be true that: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. For the nation whose PPC is shown, it must be true that:A.the nation’s productive resources are better-suited to making milk than to making movies.B.the

下列属于建筑工程一切险中意外事故的是（ ）。 A.风暴、暴雨 B.山崩、雪崩 C.台风、龙卷风 D.火灾和爆炸