【单选题】【消耗次数:1】
I have been at home [填空]Sunday.
on
for
at
since
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相关题目
【单选题】 I came to?Beijing?in 1991 and have been ?[填空] here ever since.
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【单选题】 I hope ___ the little ___ I have been able to do has been of some use.
①  that; that
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随机题目
【单选题】 4.1.2一种可变要素投入的合理区间第Ⅱ阶段起始于( )。
①  A APL=0,MPL =0
②  B APL=MPL,MPL =0
③  C APL=MPL,MPL<0
④  D APL>0,MPL =0
【单选题】 4.1.1当边际成本小于平均成本时,产量的进一步增加将导致( )。
①  A平均成本上升
②  B平均成本可能上升也可能下降
③  C总成本下降
④  D平均成本一定是处于减少状态
【单选题】 4.1.5厂商长期内产量加倍,而平均成本下降,意味着( )。
①  A存在规模经济
②  B存在规模不经济
③  C规模收益不变
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【单选题】 4.1.3在两种生产要素投入情况下,其最优组合是( )。
①  A等产量线与等成本线相交之点
②  B等产量线与等成本线相切之点
③  C等产量线与等成本线相离之点
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【单选题】 4.1.4随着产量的增加,平均固定成本会( )。
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②  B先下降再上升
③  C先上升再下降
④  D一直下降
【判断题】 3.2.3离圆点越近的无差异曲线代表的效用越大。( )
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【判断题】 3.2.1某消费者对某种商品消费数量感到足够,说明他对该商品的边际效用达到最大。( )
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【判断题】 3.2.2无差异曲线的斜率为正。( )
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【判断题】 3.2.4在同一条无差异曲线上,消费者得到的效用水平是一样的。( )
①  正确
②  错误
【判断题】 3.2.5在无差异曲线和预算线的交点上,消费者所得到的效用达到最大。( )
①  正确
②  错误