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【单选题】
Don’t worry _____, or you’ll get _____ thin.A.
much too; too much
B.
too much; much too
C.
much too; much too
D.
too much; too much
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举一反三
【单选题】Noxious emissions amount to 0.25~0.4 percent by volume of the___ ,depending on the amount of sulphur in the fuel and its lower heat value, and the engine type, speed and eficiency Noxious emissions有毒排...
A.
sulphur
B.
suction air
C.
exhaust gas
D.
discharging air
【简答题】Many nations are restricting emissions of noxious gases. The noxious gases threaten the atmosphere.
【简答题】Identify from which paragraph the information is derived. China is adopting European standards in controlling the emissions of noxious car exhausts.
【单选题】By ( ), besides burning coal, other noxious emissions from industry and vehicles were added to the mix of London’s air pollution.
A.
The mid-19th century
B.
The mid-20th century
C.
The end of 19th century
D.
The beginning of 21st century
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