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【单选题】
在下列SQL语句中,属于数据控制语言DCL的是()A.
CREATE 2、SELECT 3、UPDATE 4、GRANT 5、DELETE 6、ALTER 7、INSERT 8、REVOKE
B.
4，8
C.
1，5，6，7
D.
2，3，6，8
E.
1，5，7
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反馈参考答案：
举一反三
【多选题】关于围护结构权衡判断的描述正确的有( )
A.
使用时对围护结构热工参数没有任何前提条件限制
B.
使用时对围护结构热工参数有前提条件限制
C.
以模拟计算的建筑能耗值为判断依据
D.
是实际产生的建筑能耗值为判断依据
【单选题】It's almost the end of summer for the first annual contest to choose the best operating monopoly in America. Five contestants are selected. Each exhibits fine monopolistic characteristics and is worth...
A.
Fine monopolistic characteristics.
B.
Large flows of revenues and high wage rates.
C.
Its control over First Class mail prescribed by the Constitution.
D.
The longest-running monopoly.
【单选题】—Is Mo Yan, the Nobel Prize winner, ______ best writer in China? —It’s hard to say. But he is really ______ very good writer.
A.
a; the
B.
a; a
C.
/; a
D.
the; a
【单选题】According to the passage, the floor of the Black Sea can best be compared to a
A.
rapidly moving conveyor belt.
B.
slowly settling foundation.
C.
rapidly expanding balloon.
D.
violently erupting volcano.
E.
slowly eroding mountain.
【单选题】The author believes that rote rehearsal is ______.
A.
the best way to remember something
B.
more efficient than chunking
C.
ineffective in the long run
D.
an unnecessary interruption
【单选题】The book _____ by Mo Yan is a best seller.
A.
had written
B.
to be written
C.
being written
D.
written
【单选题】The famous director Steven Spielberg, who directed the film 'Munich' nominated for best motion picture, is an Israeli.
A.
Y
B.
N
C.
NG
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