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【单选题】
We look forward to the day when the reduction of greenhouse gases is a top priority.
A.
advantage
B.
emphasis
C.
pre-condition
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参考解析：
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举一反三
【单选题】The rain was only intermittent yesterday, so we could still go out for a walk.
A.
light
B.
pounding
C.
stopping and starting
【单选题】Which two types of power are available in Yorkshire?
A.
wind and coal
B.
coal and solar
C.
nuclear and wind
【单选题】The researcher’s ideas were potentially dangerous because they were based more on theory than scientific evidence.
A.
strongly
B.
incorrectly
C.
possibly
【单选题】That solar power company is full of a bunch of converts who used to be in favor of coal power.
A.
experienced engineers
B.
new believers
C.
unsure workers
【单选题】The British invest more money in wave energy research than other countries, but do they really believe it could be an efficient way to produce energy?
A.
economical and useful
B.
new and unusual
C.
wasteful and powerful
【单选题】Cause: Effect: Alcohol is added to create biofuels.
A.
Vegetable oil alone does not work as a fuel.
B.
Biodiesel can be used in diesel trucks.
C.
Aigae doesn't create a greenhouse gas when burned.
【单选题】Some energy campaigners believe we should look for other sources of energy besides fracking because it might cause pollution.
A.
installing wind turbines
B.
extracting gas from rock
C.
depending on solar power
【单选题】Cause: Effect:Companies convert engines of vehicle fleets and reduce emissions.
A.
Biodiesel may not need more financial support.
B.
Algae doesn't create a greenhouse gas when burned.
C.
Biodiesel can be used in diesel trucks.
【单选题】Cause: Classroom groups discuss alternative energy sources. Effect:
A.
Students recommend an energy investment.
B.
The group decides sun-based energy is too expensive.
C.
Shelley's strong evidence convinces the group.