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【单选题】
在SQL语言中,与关系代数中的投影运算对应的子句是( )。
A.
SELECT
B.
FROM
C.
WHERE
D.
ORDER BY
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参考答案：
举一反三
【判断题】企业物流活动有供应物流、生产物流、销售物流、回收物流、废弃物流。
A.
正确
B.
错误
查看完整题目与答案
【判断题】Ficoll分层液法制备PBMC时,离心前应注意将抗凝血与Ficoll淋巴细胞分离液充分混匀,否则将影响分离效果
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：Good evening and thank you for tuning in to another episode of Say More here in Sydney. Today we will have an interview with Yumiko Watanabe, whose latest novel, 'Forbidden' , won her the Lascell...
A.
A doctor.
B.
A show host.
C.
A viewer.
D.
A writer.
查看完整题目与答案
【单选题】—This digital camera is too expensive. I can't afford it. —Here's another one, madam. It's _________. [     ]
A.
better
B.
dearer
C.
cheaper
查看完整题目与答案
【单选题】电影《罗宾汉》(Robin Hood: The Prince of Thieves)主题歌“Everything I Do,I Do It For You” Everything I do It For You.mp4
A.
Repetition
B.
Parallelism
C.
Oxymoron
D.
Pun
查看完整题目与答案
【单选题】Look! Here________another bus. Let's get on it. [     ]
A.
coming
B.
is coming
C.
come
D.
comes
查看完整题目与答案
【单选题】在企业现有的生产布局条件下，根据企业生产系统的要求，实现原材料、零部件等物料在供应库、生产现场、成品库之间流转的物流活动称为（　）。
A.
企业采购物流
B.
企业生产物流
C.
企业供应物流
D.
企业销售物流
查看完整题目与答案
【判断题】吉祥纹样中喜鹊+梅花组合在一起寄托的吉祥含义是喜上眉梢( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Jenny wants to get _______ job. She's tired of working here.
A.
a
B.
one
C.
the
D.
another
查看完整题目与答案
【单选题】Another aspect of C that's worth mentioning here is that it is, to put it bluntly, a bit dangerous. C does not, in general, try hard to protect a programmer from mistakes. If you write a piece of(66)w...
A.
word
B.
code
C.
sentence
D.
character
查看完整题目与答案
相关题目：
【判断题】企业物流活动有供应物流、生产物流、销售物流、回收物流、废弃物流。
A.
正确
B.
错误
查看完整题目与答案
【判断题】Ficoll分层液法制备PBMC时,离心前应注意将抗凝血与Ficoll淋巴细胞分离液充分混匀,否则将影响分离效果
A.
正确
B.
错误
查看完整题目与答案
【单选题】听力原文：Good evening and thank you for tuning in to another episode of Say More here in Sydney. Today we will have an interview with Yumiko Watanabe, whose latest novel, 'Forbidden' , won her the Lascell...
A.
A doctor.
B.
A show host.
C.
A viewer.
D.
A writer.
查看完整题目与答案
【单选题】—This digital camera is too expensive. I can't afford it. —Here's another one, madam. It's _________. [     ]
A.
better
B.
dearer
C.
cheaper
查看完整题目与答案
【单选题】电影《罗宾汉》(Robin Hood: The Prince of Thieves)主题歌“Everything I Do,I Do It For You” Everything I do It For You.mp4
A.
Repetition
B.
Parallelism
C.
Oxymoron
D.
Pun
查看完整题目与答案
【单选题】Look! Here________another bus. Let's get on it. [     ]
A.
coming
B.
is coming
C.
come
D.
comes
查看完整题目与答案
【单选题】在企业现有的生产布局条件下，根据企业生产系统的要求，实现原材料、零部件等物料在供应库、生产现场、成品库之间流转的物流活动称为（　）。
A.
企业采购物流
B.
企业生产物流
C.
企业供应物流
D.
企业销售物流
查看完整题目与答案
【判断题】吉祥纹样中喜鹊+梅花组合在一起寄托的吉祥含义是喜上眉梢( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】Jenny wants to get _______ job. She's tired of working here.
A.
a
B.
one
C.
the
D.
another
查看完整题目与答案
【单选题】Another aspect of C that's worth mentioning here is that it is, to put it bluntly, a bit dangerous. C does not, in general, try hard to protect a programmer from mistakes. If you write a piece of(66)w...
A.
word
B.
code
C.
sentence
D.
character
查看完整题目与答案
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