【单选题】Madonna buys only two goods. Her utility function is Cobb-Douglas. Her demand functions have which of the following properties?
A.
Her demand for one of the two goods does not depend on income.
B.
Her demand for neither good depends on income.
C.
Her demand for each of the goods depends on income and on the prices of both goods.
D.
Her demand for each of the two goods depends only on her income and on the price of that good itself.
【单选题】单相半波整流电路如图所示,变压器副边电压有效值 U 2 为 10V ,则输出电压的平均值 U o 是( )
【单选题】单相半波整流电路如图所示,变压器副边电压有效值 U 2 为 10 V ,则输出电压的平均值 U O 是( )
【判断题】在变压器副边电压和负载电阻相同的情况下,单向桥式整流电路的输出电流平均值是半波整流电路的2倍。
【单选题】Madonna buys only two goods. Her utility function is Cobb-Douglas. Her demand functions have which of the following properties?
A.
Her demand for one of the two goods does not depend on income.
B.
Her demand for neither good depends on income.
C.
Her demand for each of the two goods depends only on her income and on the price of that good itself.
D.
Her demand for each of the goods depends on income and on the prices of both goods.
【简答题】Do you know Weibo? Do you write a Weibo? If you don't, you are 'out'! Weibo means microblog. People may spend muchtime writing a blog, but it takes a little time to write a microblog.Why? Because ever...