题目内容
（请给出正确答案）
A、A.等成本线表示生产者全部成本所能购买的劳动力和资本两种要素的各种组合
B、B.等成本线是一条直线
C、C.等成本线的斜率为负
D、D.生产者均衡时，等成本线与等产量曲线相切
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“以下关于等成本线说法正确的是（）”相关的问题
A．某一产量水平的平均成本，等于该产量水平总成本曲线上的点与原点连线的斜率
B．某一产量水平的边际成本，等于该产量水平总成本曲线的斜率
C．当边际成本小于平均成本时，平均成本总是处于递减阶段
D．以上说法均正确
A、只交付CAD图纸即可，不需向下一阶段传递模型
B、装配式BIM模型必须包含重难点施工工艺模拟
C、装配式BIM交付成果应包含设计图纸和基本的料单
D、装配式竣工BIM模型不需要满足装配式竣工模型深度等级
A. 生产量等于销售量
B. 生产量变化，销售单价不变，从而使销售收入成为销售量的线性函数
C. 生产量不变，单位可变成本变化，从而使总生产成本成为生产量的线性函数
D. 只生产单一产品；或者可以生产多种产品，但可以换算成单一产品计算
A、要求受力钢筋延性较好，混凝土强度等级较高（大于C45）
B、截面的相对受压区高度较小（0.10~0.35）
C、调幅法可使支座负弯矩和跨中正弯矩同时增大
D、调幅法可使支座负弯矩和跨中正弯矩同时减小
A、A.消费者均衡时消费者获得的效用是最大的
B、B.消费者均衡时消费者既不想再增加也不想再减少任何一种商品的消费
C、C.消费者均衡时无差异曲线和预算线相切
D、D.消费者均衡时等产量曲线和等成本线相切
A、They understood that many things in the world are "fixed," but in art, we can make things alive by giving them some movement and by providing several perspectives.
B、Traditionally in China everyone is against monotony and routine, and in art one expresses this rebellious attitude towards monotony and routine by having more than one perspective.
C、They believed that Dao gave life to ten thousand things, so to understand Dao we need to analyze those many things and in art we can do that by having several perspectives.
D、Chinese seek to find dynamic Dao in the movements. Thus an artist tries to express Dao dynamics by constantly changing the point of perspective in the painting.
A、Yes, they do. Because Confucianism strongly influenced the art of painting, and they being very pragmatical believed that even in paintings one should represent the reality as closely as one can.
B、No, they do not. Because the Chinese painters tend to grasp the essence or the soul of the things that they are drawing.
C、No, they do not. Because for Chinese people painting is almost like a magic power that may change our daily reality.
D、Yes, they do. Because they are good at observing and imitating the shape of the real world. Thus they always strive for perfection in paintings.
A、They are usually framed.
B、You can never see the whole picture immediately because they will gradually scroll before your eyes.
C、They are of multi-perspective style.
D、They are of one point perspective style.
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