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【单选题】
有害气体净化方法大致分为洗涤法、吸附法、袋滤法、静电法、燃烧法和高空排放法。下列关于确定净化方案的原则不正确的是( )。A.
有害物质的成分、含量和毒性等理化指标只有在设计完成后才能确定,设计前无法确定
B.
确定有害物质的净化目标和综合利用方向,应符合卫生标准和环境保护标准的规定
C.
净化设备的工艺特性,必须与有害介质的特性相一致
D.
落实防火、防爆的特殊要求
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举一反三
【单选题】The most serious problem we are facing now is how to ______ all the pollution.
A.
get rid of
B.
get on with
C.
get through with
D.
get down to
【单选题】The question that puzzled them is ____ they can get rid of the air pollution in the area.
A.
how is it that
B.
that is how
C.
what is that
D.
how it is that
【单选题】The number of workers in this factory _______ a lot this year. There were only a few workers in it two years ago.
A.
have increased
B.
has increased
C.
have risen
D.
has booked
【单选题】The question that puzzled them is ____ they can get rid of the air pollution in the area.
A.
how is it that
B.
that how
C.
that it is how
D.
how it is that
【单选题】The UN is trying to _____ the world ____ hunger.
A.
get rid of; by
B.
rid; of
C.
rid; from
D.
get rid; of
【单选题】Those white workers were not (satisfied) with their wages, and when they were asked to work longer hours, it added fuel to the flames.选择能代替括号里的选项
A.
merry
B.
ideal
C.
happy
D.
delighted
【单选题】The question that puzzled them is ____ they can get rid of the air pollution in the area.
A.
how is it that
B.
that how
C.
what is it
D.
how it is that
【简答题】Relief workers were shocked by what they saw.
【简答题】According to the passage, the French workers were ______ .
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