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【单选题】
目前低压供电系统多数采用（）供电系统。
A.
单相制
B.
三相三线制
C.
三相五线制
D.
三相四线制
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【单选题】____ is well known that the earth turns around the sun.
A.
It
B.
As
C.
Which
D.
That
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【单选题】The moon turns round the earth ， just _____ the earth circles round the sun .
A.
therefore
B.
as
C.
thus
D.
so
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【单选题】Our teacher told us that the moon _________ round the earth.
A.
went
B.
turned
C.
go
D.
turns
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【简答题】A．The water turns gray. B．It grows again. C．Life on earth improves. D．Life on earth dies.
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【简答题】________ moon turns around _______ earth.
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【单选题】What a lovely toy race car! Could you please tell me ( ) ?
A.
why did you get it
B.
when will you get it
C.
where you got it
D.
how will you get it
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【单选题】It is the theory ____the earth turns around the sun____ changes the world. [     ]
A.
that; what
B.
what; that
C.
that; which
D.
that; that
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【简答题】A．The water turns gray. B．It grows again. C．Life on earth improves. D．Life on earth dies.
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【单选题】A．The water turns gray.B．It grows again.C．Life on earth improves.
A.
The water turns gray.
B.
It grows again.
C.
Life on earth improves.
D.
Life on earth dies.
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【简答题】11. Paolo usually washes his car on weekends, but last weekend he ____ it.
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【单选题】____ is well known that the earth turns around the sun.
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【单选题】The moon turns round the earth ， just _____ the earth circles round the sun .
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【单选题】A．The water turns gray.B．It grows again.C．Life on earth improves.
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【简答题】11. Paolo usually washes his car on weekends, but last weekend he ____ it.
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