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【单选题】
关于SQL语句，下列说法正确的是（ ）。A.
Order by子句必须在Group by 子句之后
B.
Desc子句与Group by子句必须连用
C.
Having子句与Group by子句必须连用
D.
Order by 子句与Group by子句必须连用
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举一反三
【单选题】My wallet is nowhere to be found; ______ while I was on the bus.
A.
should I dropped it
B.
I must have dropped it
C.
I ought to have dropped it
D.
I had been dropping
【单选题】This is _____ English class. I hope you can enjoy English. [ ]
A.
our the first
B.
the our first
C.
our first
D.
first the our
【简答题】I like English class very much．English is my ______ class．
【简答题】根据开发河段的自然条件之不同，河川水能资源开发的基本方式包括 、引水式和混合式三种。
【简答题】水能的开发方式包括()、()和();
【单选题】I dropped my key in the garden, but luckily my mother ________it.
A.
located
B.
knew
C.
recognized
D.
spotted
【单选题】You are in the English class there, right?
A.
No, I am not a waiter!
B.
In the English class? Yes, that is right.
【单选题】In English class we must ___________ English. Please ___________ it ___________ English. [ ]
A.
speak, say, in
B.
talk, tell, with
C.
say, speak, in
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