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【简答题】
低挥发分劣质煤,为稳定着火与燃烧,常采用()送粉系统,此时携带细粉的磨煤乏气由排粉机经燃烧器中专门的喷口送入炉膛燃烧,称为()。
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举一反三
【单选题】What age were the participants in the study?
A.
Over 55 years of age.
B.
Over 63 years of age.
C.
Over 75 years of age.
D.
Over 80 years of age.
【单选题】It is over six years _____ we started to learnEnglish.
A.
before
B.
since
C.
after
D.
when
【单选题】在贵州各类土壤中, ( ) 面积最大,占贵州总面积的 38.6%。 A 、 红壤 B 、 黄壤 C 、 黄棕壤 D 、 砖红壤性红壤 答案: B
A.
红壤
B.
黄壤
C.
黄棕壤
D.
砖红壤性红壤
【简答题】Many drivers in WCT have worked there for over ______ years.
【单选题】(For several) years now, the student body (is attempting) to gain (more) influence (over) university policies.
A.
For several years now
B.
is attempting
C.
more
D.
over
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