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【单选题】
下面提到的问题中,与盐的水解无关的是 1 明矾和FeCl 3 可作净水剂。 2 实验室配制AlCl 3 溶液时,把它溶在盐酸中,而后加水稀释。 3 比较NH 4 Cl和Na 2 S等溶液中离子浓度的大小或某些盐溶液的酸碱性。 4 中和物质的量浓度和体积均相同的盐酸与醋酸溶液,消耗NaOH的物质的量相同
A.
①
B.
②
C.
③
D.
④
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【单选题】Great Changes have taken place since then in the factory we are working.
A.
where
B.
that
C.
there
D.
which
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【单选题】We went to the factory ___we visited last year.
A.
that
B.
where
C.
when
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【单选题】扩展名为( )的文件,在没有安装PowerPoint 2010的系统中可直接放映。
A.
pop
B.
ppz
C.
ppsx
D.
pptx
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【单选题】Great changes ahve taken place since then in the factory we are working.
A.
where
B.
that
C.
which
D.
there
查看完整题目与答案
【单选题】Because of the recent fire in the factory, all the stocks were destroyed. (), we cannot make shipment as arranged before.
A.
In the case
B.
In this cases
C.
In this event
D.
At this event
查看完整题目与答案
【单选题】扩展名为( )的文件,在没有安装PowerPoint2010的系统中可直接放映
A.
.pop
B.
.ppz
C.
.pps
D.
.pptx
查看完整题目与答案
【单选题】扩展名为()的文件,在没有安装PowerPoint 2010 的系统中可直接放映
A.
.potx
B.
.ppzx
C.
.ppsx
D.
.pptx
查看完整题目与答案
【单选题】扩展名为( )的文件,在没有安装PowerPoint 2010的系统中可直接放映。
A.
PPTX
B.
ppsX
C.
WMV
D.
PNG
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【单选题】The river by waste products from the factory. We can find no fish in it.
A.
has polluted
B.
will pollute
C.
has been polluted
D.
will be polluted
查看完整题目与答案
【判断题】In the future factory we still need lots of people to work.
A.
正确
B.
错误
查看完整题目与答案
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【单选题】Great Changes have taken place since then in the factory we are working.
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where
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there
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【单选题】We went to the factory ___we visited last year.
A.
that
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where
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【单选题】扩展名为( )的文件,在没有安装PowerPoint 2010的系统中可直接放映。
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【单选题】Great changes ahve taken place since then in the factory we are working.
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B.
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【单选题】Because of the recent fire in the factory, all the stocks were destroyed. (), we cannot make shipment as arranged before.
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In this event
D.
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【单选题】扩展名为( )的文件,在没有安装PowerPoint2010的系统中可直接放映
A.
.pop
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.ppz
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【单选题】扩展名为()的文件,在没有安装PowerPoint 2010 的系统中可直接放映
A.
.potx
B.
.ppzx
C.
.ppsx
D.
.pptx
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【单选题】扩展名为( )的文件,在没有安装PowerPoint 2010的系统中可直接放映。
A.
PPTX
B.
ppsX
C.
WMV
D.
PNG
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【单选题】The river by waste products from the factory. We can find no fish in it.
A.
has polluted
B.
will pollute
C.
has been polluted
D.
will be polluted
查看完整题目与答案
【判断题】In the future factory we still need lots of people to work.
A.
正确
B.
错误
查看完整题目与答案
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