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【单选题】

Singapore incinerates less than 20 percent of its garbage.

A.
True
B.
False
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参考答案:
参考解析:
.
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【单选题】Kits to modify the engine to use the oil from restaurants cost _____.

A.
about twenty dollars
B.
several hundred to several thousand dollars
C.
under a hundred dollars

【单选题】One way colleges in the United States do NOT use recycled cooking oil is _____.

A.
to heat dorms and buildings
B.
to operate campus equipment like lawn mowers
C.
to run bus shuttle services

【单选题】A university in England is trying to use recycled oil to _____.

A.
develop hydrogen
B.
generate electricity
C.
power local transportation