立井提升专为升降人员和物料的罐笼,进出口必须装设罐门或罐帘,高度不得小于()m。
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The following sales figures are available for the last two years. All of the figures represent actual sales except for quarter 2 of 2012, which is an estimate. The financial director is satisfied that this estimate can be relied upon.
The following centred moving averages have been calculated, using a base period of four quarters:
The average seasonal variations for 2010 have already been made available to you and are 0·908 for quarter 3 and 1·082 for quarter 4. The random component is negligible and can therefore be ignored.
Required:
(a) Using the information provided above, and assuming a proportional (multiplicative) model, forecast the sales of Sauce Co for the last two quarters of 2012. Calculate your seasonal adjustments to four decimal places. (10 marks)
(b) Discuss the likely impact that the budgeting style. and inaccurate sales forecasts have had on the staff and business of Sauce Co. (10 marks)
井下配电系统同时存在()以上电压时,配电设备上应明显地标出其电压额定值。
A. 3种或3种以
B. 2种或2种
C. 4种或4种
木料场、矸石山、炉灰场距离进回风井不得小于80m,木料场距离矸石山不得小于()m。
A. 50
B. 20
C. 80
火区封闭后,现场人员应立即撤出危险区。进入检查或加固密闭墙,应在()之后进行。
A. 24min
B. 48h
C. 24h