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【单选题】
（）指是将计算机源文档中对象复制到目的文档中，并保持与源文档的直接连接。如果源文档中的信息变化了，目的文档中的信息自动更新。A.
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B.
链接
C.
导入
D.
导出
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举一反三
【简答题】计算：2000×1999-1999×1998+1998×1997-1997×1996+1996×1995-1995×1994．
【单选题】Income
Income may be national income and personal income. Whereas national income is defined as the total earned income of all the factors of production-namely, profits, interest, rent, wages, and ot...
A.
GNP equals national income plus indirect business taxes.
B.
GNP excludes both capital consumption allowances and indirect business taxes.
C.
Personal income is regarded as the total money income received by an individual after his or her taxes are paid.
D.
The money that goes for capital consumption is not regarded as income.
【简答题】国民收入(national income)
【简答题】计算： （1）1+2-3-m+5+n-7-x+9+…+1990-1991-1992+1993+199m-1995-199n+1997+1997=______． （2）3+n+9+12+15+…+1995+199x=______．
【简答题】国民收入(national income)
【单选题】下列算式中，（ ）的得数最大．
A.
1994×1999+1999
B.
1995×1998+1998
C.
1996×1997+1997
D.
1997×1996+1996
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