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【单选题】

Appeals contains an aspirated /p/ (like in poor).

A.
True
B.
False
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参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【简答题】Fossil fuels are cheap. 2. Sunlight is free and renewable. 3. Wind is free and renewable. 4. Hydroelectric power is reliable and safe 5. Geothermal energy is renewable and plentiful. ...

A.
It is not consistently windy.
B.
Energy costs are affected when there are droughts.
C.
Cloudy days affect the amount of generated energy.
D.
Nuclear waste is dangerous and lasts thousands of years.
E.
They're not renewable and cause pollution.
F.
Maintaining geothermal plants are costly and dangerous.

【单选题】Which of the following combinations is correct?

A.
nuclear-expensive
B.
wind turbines-reliable
C.
gas-imported