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【单选题】
151)对于新设计三跨绝缘锚段关节垂直距离500mm时，其允许误差（ ）。A.
（A）±20mm
B.
（B）±30mm
C.
（C）±40mm
D.
（D）±50mm
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【多选题】Forecasts based solely on the most recent observation(s) of the variable of interest
A.
are called “naive” forecasts.
B.
are the simplest of all quantitative forecasting methods.
C.
leads to loss of one data point in the forecast series relative to the original series.
D.
are consistent with the “random walk” hypothesis in finance, which states that the optimal forecast of today's stock rate of return is yesterday's actual rate of return.
【简答题】七嘴八舌说驼铃 在“我”的幼稚心灵里,存在着一个固执的想法:拉骆驼的人“耐不住那长途寂寞的旅程,才给骆驼戴上了铃铛,增加一些行路的情趣”。爸爸认为这个想法“更美些”。“美”在什么地方?
【判断题】In a push-based supply chain, production and distribution decisions are based on long-term forecasts.
A.
正确
B.
错误
【判断题】In a push-based supply chain, production and distribution decisions are based on short-term forecasts.
A.
正确
B.
错误
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