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【多选题】
对离散程度的测度,以下表述正确的是( )。
A.
数据的离散程度越大,集中趋势的测度值对数据的代表性就越差
B.
离散系数大的说明数据的离散程度大
C.
离散系数的作用主要是用于比较不同组别数据的离散程度
D.
离散系数小的说明数据的离散程度大
E.
数据的离散程度越小,集中趋势的测度值对数据的代表性就越差
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【判断题】制服可以不分男女。
A.
正确
B.
错误
【单选题】Consider Figure 5.1. Suppose the Mexican government provides a subsidy of $200 per ton to its steel producers, as indicated by the supply schedule (with subsidy).The overall deadweight welfare loss to...
A.
$200
B.
$400
C.
$600
D.
$800
【单选题】智力测验量表的可靠程度被称为()。
A.
信度
B.
效度
C.
难度
D.
区分度
【简答题】计算机账务处理系统中,记账后的凭证不能( )。
【单选题】Economists consider the effects of free trade on income distribution to be ________ important than the effects on overall welfare because ________.
A.
less; many factors besides trade affect income distribution
B.
more; those who are harmed are not compensated by those who gain
C.
less; the effects on income distribution are minor and inconsequential
D.
more; the effects on income distribution are major and consequential
E.
less; the wealthy benefit and only the poor lose
【单选题】Economists consider the effects of free trade on income distribution to be ________ important than the effects on overall welfare because ________.
A.
less; those who are harmed can be compensated by those who gain
B.
more; those who are harmed are not compensated by those who gain
C.
less; the effects on income distribution are minor and inconsequential
D.
more; the effects on income distribution are major and consequential
E.
less; the wealthy benefit and only the poor lose
【单选题】Consider Figure 5.1. Suppose the Mexican government provides a subsidy of $200 per ton to its steel producers, as indicated by the supply schedule SM (with subsidy). The overall deadweight welfare los...
A.
$200
B.
$400
C.
$600
D.
$800
【单选题】最主要的引起老年人卧床不起的原因为
A.
老年痴呆
B.
骨折
C.
衰老
D.
脑血管疾病
【简答题】计算机账务处理系统中,记账后的凭证不能( )。
【简答题】Translate the following into Chinese It is becoming increasingly important to consider the "cradle-to-grave" life cycle of materials relative to the overall manufacturing process.
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