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【单选题】
下列关于关系表的描述,正确的是( )
A.
关系表一定是二维表
B.
二维表一定是关系表
C.
关系表中可以有相同的记录
D.
关系表中的同一列允许出现不同类型的数据
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举一反三
【简答题】Every hour and every minute ______ (be) precious.
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【单选题】Every hour and every minute _____ important.
A.
are
B.
were
C.
is
D.
will
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【单选题】在日常生活中,别人与你打招呼不应( )。
A.
微笑示意
B.
回应
C.
不理
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【简答题】Choose the correct answer. 1) A day or two _____ enough. ( is / are) 2) His family ______ waiting for him. (is / are) 3) Neither you nor they _____ in fault. (is / are) 4) The po...
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【简答题】完形填空。 Today the problem of environment has become more and more serious. Every day, every hour, the air, forests, soil, oceans and fresh 1 are becoming dirtier and dirtier. There are two 2 for the pro...
查看完整题目与答案
【简答题】Every hour and every minute (be) ______ important.
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【单选题】_____ every passing hour and every shuffling step he got just a little bit closer to the race leaders.
A.
Up
B.
With
C.
On
D.
At
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【单选题】Every hour and every minute ___ important.
A.
are
B.
be
C.
is
D.
were
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【单选题】Your organization includes two servers named Server1 and Server2 that run Windows Server 2003 Service Pack 2 (SP2). Server1 and Server2 host the same Web sites. You need to back up the server configur...
A.
IISBack.vbs /backup
B.
IISBack.vbs /list
C.
IISCnfg.vbs /copy
D.
IISCnfg.vbs /save
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【判断题】极易受窘。( )
A.
正确
B.
错误
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相关题目：
【简答题】Every hour and every minute ______ (be) precious.
查看完整题目与答案
【单选题】Every hour and every minute _____ important.
A.
are
B.
were
C.
is
D.
will
查看完整题目与答案
【单选题】在日常生活中,别人与你打招呼不应( )。
A.
微笑示意
B.
回应
C.
不理
查看完整题目与答案
【简答题】Choose the correct answer. 1) A day or two _____ enough. ( is / are) 2) His family ______ waiting for him. (is / are) 3) Neither you nor they _____ in fault. (is / are) 4) The po...
查看完整题目与答案
【简答题】完形填空。 Today the problem of environment has become more and more serious. Every day, every hour, the air, forests, soil, oceans and fresh 1 are becoming dirtier and dirtier. There are two 2 for the pro...
查看完整题目与答案
【简答题】Every hour and every minute (be) ______ important.
查看完整题目与答案
【单选题】_____ every passing hour and every shuffling step he got just a little bit closer to the race leaders.
A.
Up
B.
With
C.
On
D.
At
查看完整题目与答案
【单选题】Every hour and every minute ___ important.
A.
are
B.
be
C.
is
D.
were
查看完整题目与答案
【单选题】Your organization includes two servers named Server1 and Server2 that run Windows Server 2003 Service Pack 2 (SP2). Server1 and Server2 host the same Web sites. You need to back up the server configur...
A.
IISBack.vbs /backup
B.
IISBack.vbs /list
C.
IISCnfg.vbs /copy
D.
IISCnfg.vbs /save
查看完整题目与答案
【判断题】极易受窘。( )
A.
正确
B.
错误
查看完整题目与答案