【单选题】【消耗次数：1】
在完全竞争的要素市场上，市场要素供给曲线是一条 ( )。
①
水平线
②
垂直线
③
向右上方倾斜的曲线
④
向右下方倾斜的曲线
参考答案：
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相关题目
【单选题】
在完全竞争市场上，生产要素的需求曲线向右下方倾斜是由于（）。
①
要素生产的产品的边际效用递减
②
要素的边际产品递减
③
投入越多，产出越大，从而产品价格越低
④
要素所生产的产品的需求减少
【简答题】
什么是菲利普斯曲线？为什么向右下方倾斜？
【单选题】
假定某厂商的平均收益曲线从水平线变为向右下倾斜的曲线，这说明
①
既有厂商进入也有厂商退出该行业;
②
完全竞争被不完全竞争所取代;
③
新的厂商进入了该行业;
④
原有厂商退出了该行业。
随机题目
【单选题】
下列哪种方式是幼儿老师与家长谈话交往时较好的方式（ ）。
①
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谈话时不涉及别的孩子，以平等的身份采用日常用语与家长交谈
②
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只是向家长报告孩子的优点，让家长高兴
③
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对存在问题的孩子，向家长指出他们的教育观有问题
④
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只是向家长谈幼儿的问题，要家长注意或配合教育孩子
【单选题】
阳光中的紫外线照射到皮肤上可生成( )。
①
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②
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③
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④
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