为排除实验点的天气干扰,建立如下生产函数:Y=eβω (a+bx-cx2),式中β为常数,ω为表示天气的随机参数。若比正常天气好,则ω的取值
A.小于0
B.等于0
C.大于0
D.无法确定
正确答案是C
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