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【单选题】
根据NB/T47013.5-2015标准规定,对局部进行渗透检测时,准备工作范围应从检测部位四周向外扩展A.
10mm；；
B.
15mm；
C.
20mm；
D.
25mm；
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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】计算： 1996+1995×1997 1996×1997-1 + 1997+1996×1998 1997×1998-1 + 1998+1997×1999 1998×1999-1 ．
【简答题】（ 2 3 ） 1998 ×（-1.5） 1997 =______．
【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】以下那个选项是正确的定义了一个类?()(选择一项)
A.
class Test{}
B.
const Test()
C.
const Test{}
D.
class Test()
【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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