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【简答题】
有一对称三相负载 Y 接,每相阻抗均为 22Ω ,功率因数为 0.8 ,测出负载中的电流是 10A ,那么三相电路的有功功率等于 ;无功功率等于 ;视在功率等于 。假如负载为感性设备,其等效电阻是 ;等效电感量是 。
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举一反三
【简答题】Background ABC Co manufactures wooden storage boxes. The boxes are made on separate production lines, but the purchasing of material is a centralized function. Company sales data for the months of Jan...
【单选题】A company anticipates that 10,000 units of product z will be sold during January. Each unit of z requires 2 litres of raw material w. Actual stocks as of 1 January and budgeted inventories as of 31 Ja...
A.
$84,000
B.
$80,000
C.
$44,000
D.
$12,000
【单选题】Experts have determined that the cost of replacing employees is 1.5 times that of an employee’s annual salary. Company A and B both have 10,000 employees that earn $60,000 each on the average. Company...
A.
$27,000,000
B.
$54,000,000
C.
$74,000,000
D.
$81,000,000
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