【单选题】Bart consumes food and clothing, which are both normal goods. Suppose that the price of food falls. The substitution effect of this price decrease is ________ and the income effect of this price decre...
A.
that Bart buys more clothing and less food; that Bart buys more of both food and clothing
B.
reflected by a change in the relative prices of food and clothing; is represented by a movement along the original indifference curve
C.
reflected by a parallel shift outward of the budget line; that Bart earns more money each month
D.
reflected by the change in the slope of the budget line; that Bart has greater purchasing power
【判断题】PLC系统工作任务管理及应用程序执行都是循环扫描的方式。 ( )
【单选题】什么材料在书籍的成本中占有很大的比重,要尽可能节约和利用,缩小它的浪费。
【单选题】粉末的粒径(粒径)是以( )表示颗粒大小(仅指单颗粒)。
【单选题】Theunderlined part is ______________ of the following sentence.The average American teenager consumes enormous quantities of junk food.
【简答题】Jack consumes a pound of cheese a day.
【判断题】PLC系统工作任务管理及应用程序执行都是循环扫描的方式。
【单选题】Jack consumes a Pound of cheese a day.