表示
I regret _____ you that your application has been refused.
I regret \_\_\_\__ you that your application has been refused.
假定某厂商的需求曲线为Q=10000-100P,其中,Q为产量,P为价格,用元表示。厂商的平均成本函数为AC=30000/Q+50。求厂商利润最大化的产量与价格是多少?最大化利润水平是多高?
假定某厂商的需求曲线为Q=10000-100P,其中,Q为产量,P为价格,用元表示。厂商的平均成本函数为AC=30000/Q+50。求厂商利润最大化的产量与价格是多少?最大化利润水平是多高? 解:已知,Q=10000-100P,于是,P=100-1/100Q,则:TR=P·Q=(100-1/100Q)·Q=100Q-(1/100)Q2,MR=dTR/dQ=100-(1/50)Q。又已知,AC=30
I would ask for a special meeting if I _____ her.
I would ask for a special meeting if I \_\_\_\__ her.
Jim’s job is to keep his boss _____ of the latest development of that product in Europe.
Jim’s job is to keep his boss \_\_\_\__ of the latest development of that product in Europe.
从一批产品中随机抽两次,每次抽1件。以A表示事件“两次都抽得正品”, B表示事件“至少抽得一件次品”,则下列关系式中,正确的是()
从一批产品中随机抽两次,每次抽1件。以A表示事件“两次都抽得正品”, B表示事件“至少抽得一件次品”,则下列关系式中,正确的是()D
盒中有10个木质球,6个玻璃球,玻璃球中有2个红色4个蓝色,木质球中有3个红色7个蓝色,先从盒中任取一球,用表示“取到蓝色球”,用表示“取到玻璃球”,则()
盒中有10个木质球,6个玻璃球,玻璃球中有2个红色4个蓝色,木质球中有3个红色7个蓝色,先从盒中任取一球,用表示“取到蓝色球”,用表示“取到玻璃球”,则()D