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程序功能:读入 20 个整数,统计非负数的个数。 #include void main() { int i,a[20],count =0; for(i=0;i<20;i++) scanf(“%d”, ); for(i=0;i<20;i++) if( ) count++; printf(“%d\n”, count); }
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【单选题】Dear sir, Thank you for your kind letter of December 11, 2003. We are happy to know that our paper entitled 'Purification of Clostridium perfringens phospholipas C (@-toxin) by affinity chromatography...
A.
to be revised
B.
to get a prize
C.
to be published
D.
to be looked through
【单选题】查询员工工资信息时,结果按工资降序排列,正确的是( )
A.
ORDER BY 工资
B.
ORDER BY 工资 desc
C.
ORDER BY 工资 asc
D.
ORDER BY 工资 distinct
【单选题】查询员工工资信息时,结果按工资降序排列,正确的是:
A.
ORDER BY 工资
B.
ORDER BY 工资 desc
C.
ORDER BY 工资 asc
D.
From by 工资
【简答题】阅读理解： Letter 1 December 1, 2009 Dear Mr. John Campbell, We have received your letter of November 20, 2009 about your latest model of mountain bikes, in which we are very much interested. We believe th...
【单选题】Dear Mr. Smith: Thank you very much for your inquiry dated December 12, 2002. I am glad to tell you that we are an outstanding hi-tech company specializing in telephone facilities and are able to offe...
A.
telephone recorders
B.
telephone facilities
C.
exclusive products
D.
mobile telephones
【单选题】查询员工工资信息时,结果按工资降序排列,正确的是 ( )
A.
ORDER BY 工资 B、ORDER BY 工资 desc C、ORDER BY 工资 asc D、ORDER BY 工资 dictinct
B.
ORDER BY 工资 desc
C.
ORDER BY 工资 asc
D.
ORDER BY 工资 dictinct
【简答题】听音，填空。 December 23 Dear Jing, 1____________ family is 2____________ 3____________ 4____________ the Christmas holiday. Yesterday I 5____________ Mr. Smith 6____________ the Christmas 7____________. 8_...
【简答题】用力法解超静定结构的思路是什么?什么是力法的基本体系、基本结构和基本未知量?为什么首先要计算基本未知量?基本体系与原结构有何异同?基本体系与基本结构有何不同?
【单选题】December 13th, 2005 Dear Sirs, I am very happy to apply for the position of secretary, which you advertised in China Daily of December 10, 2005. I have been working as a secretary at a college office....
A.
she has difficulty handling her daily work efficiently
B.
she can hardly get a chance to be promoted
C.
she finds her present job too challenging
D.
she is tired of her duties at the college
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