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【单选题】
功似龙骨而又能软坚散结的药物是A.
牡蛎
B.
石决明
C.
琥珀
D.
磁石
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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...
【简答题】Why We Need Vacations There's more to a vacation than can be described in travel books. We certainly need breaks from work. But there is even more to be said for a get-away break, leaving all daily wo...
【简答题】听力原文： We need a reasonable combination of healthy eating and regular exercise. That will improve your health, help pr disease and let you live a happier life. Healthy eating goes hand-in-hand wit...
【简答题】完形填空。 We have always been warned of the ers of forest fires. They cause 1 to a forest. They kill many plants and animals in an eco-system, which is a group of living things and their environment. ...
【简答题】阅读短文,在空白处填入适当的内容或括号内单词的正确形式。 The earth is our homeland. We must look 1.________ it. Do you think it's our duty to 2.__________ (protect) the enviroment? Sure, many famous people have 3.________ (start...
【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
【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.
LPM 的拟合值不一定介于 0 ， 1 之间
【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.
对各种组合的联合概率与各该组合的结果计算加总，求取成本期望值
【简答题】 living doesn’t mean that you give up your job and start living in the countryside, but it means that we spend our time, energy and efforts on important things in life. It can be good for us in ...
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