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【单选题】
— Mike was late for class this morning. — _______? As far as I know, he never came late for class.A.
How come
B.
So what
C.
Why not
D.
What for
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【简答题】greenhouse gas
【单选题】Many nations have promised to reduce greenhouse gas emissions, but are falling short of the _______ reduction of 25 to 40 percent of 1990 levels.
A.
target
B.
option
C.
profit
D.
refund
【单选题】It can be inferred from the passage that
A.
there is no link between greenhouse gas emissions and destructive storms
B.
reduction of greenhouse gas emissions may reduce destructive storms
C.
the higher percentage of strong ones rose as more hurricanes appeared
D.
past records on hurricanes included everything needed
【简答题】The sea level rise is mainly caused by______ triggered by unchecked greenhouse gas emissions.
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