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【多选题】
平均指标的作用包括 。
A.
作为评价、决策的数量标准参考值
B.
反映了变量分布的集中趋势
C.
说明整体的生产水平和经济效果，在大系统中作为该问题的总体的代表值
D.
用以分析现象间的关系
E.
反映两个以上有相互联系的现象间数值的比率
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【单选题】可转换证券的转换价值( )其理论价值时,投资者才会行使其转换权。
A.
高于
B.
低于
C.
等于
D.
不确定
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【判断题】主键不能作为另一个关系的外键。
A.
正确
B.
错误
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【判断题】主键不能作为另一个关系的外键。
A.
正确
B.
错误
查看完整题目与答案
【判断题】当可转换证券的转换价值低于其理论价值时，投资者可继续持有债券，一方面可得到每年固定的债息，一方面可等待普通股价格的上涨。 （ ）
A.
正确
B.
错误
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【简答题】采用硫化精炼某种粗金属时，必须满足:亲合力（Me主-O） 亲合力（Me杂-O）A. 小于
查看完整题目与答案
【判断题】主键不能作为另一个关系的外键。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Only 62 percent of ____(respond)said they were satisfied.
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【单选题】Please finds out the major details of the following paragraph. Let's acknowledge the facts. The New York Times reports close to 80 percent of new jobs can be performed by someone without a college deg...
A.
The New York Times reports close to 80 percent of new jobs can be performed by someone without a college degree.
B.
This dilemma means that 38 percent have likely wasted time and accumulated debt!
C.
In addition, in the US, the cost of college has risen tenfold over the last 30 years, a ratio that is three times as much as general inflation over the same time period.
D.
It is clear, from an objective point of view, that many more students should be attending technical schools or two-year colleges to prepare for the jobs that will actually be available to them.
查看完整题目与答案
【简答题】试比较中枢和周围神经系统的有髓神经纤维和无髓神经纤维组成与结构。
查看完整题目与答案
【单选题】Please finds out the main idea of the following paragraph. Let's acknowledge the facts. The New York Times reports close to 80 percent of new jobs can be performed by someone without a college degree....
A.
The New York Times reports close to 80 percent of new jobs can be performed by someone without a college degree.
B.
The US Department of Education estimates that only 62 percent of those enrolled in four-year institutions had earned a bachelor's degree six years later!
C.
This dilemma means that 38 percent have likely wasted time and accumulated debt!
D.
In the US, the cost of college has risen tenfold over the last 30 years, a ratio that is three times as much as general inflation over the same time period.
查看完整题目与答案
相关题目：
【单选题】可转换证券的转换价值( )其理论价值时,投资者才会行使其转换权。
A.
高于
B.
低于
C.
等于
D.
不确定
查看完整题目与答案
【判断题】主键不能作为另一个关系的外键。
A.
正确
B.
错误
查看完整题目与答案
【判断题】主键不能作为另一个关系的外键。
A.
正确
B.
错误
查看完整题目与答案
【判断题】当可转换证券的转换价值低于其理论价值时，投资者可继续持有债券，一方面可得到每年固定的债息，一方面可等待普通股价格的上涨。 （ ）
A.
正确
B.
错误
查看完整题目与答案
【简答题】采用硫化精炼某种粗金属时，必须满足:亲合力（Me主-O） 亲合力（Me杂-O）A. 小于
查看完整题目与答案
【判断题】主键不能作为另一个关系的外键。
A.
正确
B.
错误
查看完整题目与答案
【简答题】Only 62 percent of ____(respond)said they were satisfied.
查看完整题目与答案
【单选题】Please finds out the major details of the following paragraph. Let's acknowledge the facts. The New York Times reports close to 80 percent of new jobs can be performed by someone without a college deg...
A.
The New York Times reports close to 80 percent of new jobs can be performed by someone without a college degree.
B.
This dilemma means that 38 percent have likely wasted time and accumulated debt!
C.
In addition, in the US, the cost of college has risen tenfold over the last 30 years, a ratio that is three times as much as general inflation over the same time period.
D.
It is clear, from an objective point of view, that many more students should be attending technical schools or two-year colleges to prepare for the jobs that will actually be available to them.
查看完整题目与答案
【简答题】试比较中枢和周围神经系统的有髓神经纤维和无髓神经纤维组成与结构。
查看完整题目与答案
【单选题】Please finds out the main idea of the following paragraph. Let's acknowledge the facts. The New York Times reports close to 80 percent of new jobs can be performed by someone without a college degree....
A.
The New York Times reports close to 80 percent of new jobs can be performed by someone without a college degree.
B.
The US Department of Education estimates that only 62 percent of those enrolled in four-year institutions had earned a bachelor's degree six years later!
C.
This dilemma means that 38 percent have likely wasted time and accumulated debt!
D.
In the US, the cost of college has risen tenfold over the last 30 years, a ratio that is three times as much as general inflation over the same time period.
查看完整题目与答案