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【多选题】
脂肪颜色是黄色的家畜肉类有( )。
A.
马肉
B.
猪肉
C.
水牛肉
D.
黄牛肉
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【简答题】We have always been warned of the ers of forest fires. They cause _____ 85 _____ to a forest. They kill many plants and animals in an eco-system, which is a group of living things and their enviro...
【单选题】随着充电电流急剧加大,欧姆极化将造成蓄电池在充电过程中( )。
A.
电压升高
B.
电压降低
C.
温度升高
D.
温度降低
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【单选题】关于概率的说法,错误的一项是
A.
通常用P表示
B.
取值范围[0,1]
C.
某事件发生的频率即概率
D.
在实际工作中,概率是难以获取的
E.
某事件P<0.05称小概率事件< /div>
【单选题】关于线性概率模型说法错误是哪一项:( )
A.
LPM 的误差项是异方差
B.
LPM 的误差项服从正太分布
C.
惯用的 R 2 在 LPM 中没有实际意义
D.
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【单选题】关于成本概率预算的编制方法,说法错误的是( )
A.
确定预算编制所涉及的每一变量
B.
确定每一变量的变化范围及其可能性
C.
计算各变量不同“组合”的分项概率
D.
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