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【单选题】
The technicians needed to retrofit the old computers with new chips.
A.
put a new piece of equipment into a machine that did not have it when it was built
B.
replace new equipment with old equipment
C.
put old parts into a new machine
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】The debate over the pros and cons of nuclear energy leave the public conflicted about its safety.
A.
enthusiastically convinced
B.
emotionally confused
C.
clearly informed
【单选题】Nuclear waste materials have proven to have a catastrophic effect on life near the power plants.
A.
disastrous
B.
fortunate
C.
common
【单选题】One concern with using gas, coal, and oil as fuels is the emissions they produce, which can cause illnesses in people and animals that breathe them.
A.
sticky, greasy substances
B.
liquid leaked into the environment
C.
gases sent out into the air
【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
【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