【单选题】When using the moving-average cost formula with a perpetual system,
A.
a weighted-average cost is calculated at year end.
B.
a new unit cost is calculated each time a sale is made.
C.
a new unit cost is calculated each time a purchase is made.
D.
a new unit cost is calculated both when a sale is made and when a purchase is made.
【简答题】When building m______ cost more, the price of houses increases.
【判断题】曳引减速器的作用是降低转速和增大转矩.()
【单选题】mso-hansi-font-family:"Times New Roman"">裙腰在低腰状态时的造型为
A.
mso-hansi-font-family:"Times New Roman"">扇面形
B.
mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:"Times New Roman"; mso-ansi-language:EN-US;mso-fareast-language:ZH-CN;mso-bidi-language:AR-SA">矩形
C.
mso-hansi-font-family:"Times New Roman"">倒置的扇面形
D.
mso-bidi-font-family:"Times New Roman";mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">梯形
【单选题】When marginal cost exceeds average total cost,
A.
average fixed cost must be rising.
B.
average total cost must be rising.
C.
average total cost must be falling.
D.
marginal cost must be falling.
【单选题】Marginal cost is rising when marginal cost is:
B.
less than average cost.
C.
greater than average cost.
【单选题】Marginal cost is equal to average total cost when( )
A.
average variable cost is falling.
B.
average fixed cost is rising.
C.
marginal cost is at its minimum
D.
average total cost is at its minimum