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【单选题】
( )是我国国民经济的支柱,是推进国家现代化、保障人民共同利益的重要力量。
A.
公有制经济
B.
国有经济
C.
集体经济
D.
混合所有制经济
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参考答案:
举一反三
【单选题】场效应管的电极有______
A.
基极B、发射极E、集电极C
B.
源极S、栅极G、漏极D
C.
阳极A、阴极K
D.
阳极A、阴极K、门极G
【单选题】从"图书"表中查找出"计算机"类定价最高的前两条记录,正确的SQL命令是
A.
SELECT TOP 2 * FROM 图书 WHERE 类别="计算机" GROUP BY 定价
B.
SELECT TOP 2 * FROM 图书 WHERE 类别="计算机" GROUP BY 定价 DESC
C.
SELECT TOP 2 * FROM 图书 WHERE 类别="计算机" ORDER BY 定价
D.
SELECT TOP 2 * FROM 图书 WHERE 类别="计算机" ORDER BY 定价 DESC
【简答题】The front side of the house has a(n) _____ (对称的)arrangement of windows and doors, with the main door in the center, a side door and two windows on each side.
【简答题】The front side of the house has a(n) _________ (symmetrical) arrangement of windows and doors, with the main door in the center, a side door and two windows on each side.
【单选题】Remember to do this in time of H1N1 --- constantly the windows to let fresh air enter and move around inside, and avoiding the access to the crowds, a necessity everyday.
A.
open
B.
we open
C.
opening;
D.
to open
【单选题】从"图书"表中查找出"计算机"类定价最高的记录对应的图书编号,正确的SQL命令是:
A.
SELECT TOP 1  图书编号  FROM 图书 WHERE 类别="计算机" GROUP BY 定价
B.
SELECT TOP 1  图书编号  FROM 图书 WHERE 类别="计算机" GROUP BY 定价 DESC
C.
SELECT TOP 1  图书编号  FROM 图书 WHERE 类别="计算机" ORDER BY 定价 ASC
D.
SELECT TOP 1  图书编号  FROM 图书 WHERE 类别="计算机" ORDER BY 定价 DESC
【单选题】The front side of the house has a(n) ________ arrangement of windows and doors, with the main door in the center, a side door and two windows on each side.
A.
explanatory
B.
symmetrical
C.
analytical
【简答题】数字信号的特征是( )。 2、傅里叶变换的四种形式( ),( ),( )和( )。 
【简答题】'Eyes are windows of the soul.' Everyone knows the of the eyes. more and more students are becoming near-sighted(近视). So how to protect the eyes is still a serious problem. Here is some advice on prot...
【判断题】思想道德素质和法治素质,是思想政治素质、道德素质和法治素质的有机融合。
A.
正确
B.
错误
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