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【单选题】
定义( )有利于对数据库中宏对象的管理。
A.
B.
宏组
C.
数组
D.
窗体
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参考答案:
举一反三
【单选题】用矩阵表示多元线性回归模型OLS估计的正规方程组,X的第1列或第1行的元素是什么?
A.
变量观测值
B.
1
C.
取值不能确定的常数
D.
0
【单选题】The meat is _____expensive and eating _____meat is bad for your health
A.
too much , much too
B.
much too, too much
C.
too much , too much
D.
much too, much too
【单选题】低层决策被称为:
A.
战略决策
B.
设计决策
C.
操作决策
D.
战术决策
【简答题】Why shouldn’t we handle the hamburger meat too much?
【单选题】用矩阵表示多元线性回归模型 OLS 估计的正规方程组, X 的第 1 列元素是什么?
A.
变量的观测值
B.
0
C.
取值不能确定的常数
D.
1
【单选题】Many people in this country eat as they actually need every day.
A.
twice as much meat
B.
twice meat as much
C.
as twice much meat
D.
meat as much twice
【单选题】The meat is _____dear and eating ____meat is bad for your health.
A.
too much,much too
B.
too much,too much
C.
much too,too much
D.
Much too,much too
【单选题】低层决策被称为:
A.
战略决策
B.
战术决策
C.
操作决策
D.
预测
【单选题】低层决策被称为
A.
战略决策
B.
战略决策
C.
操作决策
D.
预测
E.
设计决策
【判断题】低层决策被称为操作决策
A.
正确
B.
错误
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