Coal is most used for the electricity production in()and().
The UAS China
举一反三
- ( ) is most used for the electricity production in the USA and China.
- If 300g of standard coal is used for 1kW.h of electric energy in a power station, the efficiency of generating electricity is (). A: 31% B: 41% C: 51% D: 61%
- The most easily oxidized coal is (). A: lignite coal B: bituminous coal C: lean coal D: anthracite coal
- In the following options, ( ) is considered as the secondary energy. A: Coal B: Gas C: Electricity D: Oil
- Nuclear power is the use of nuclear reactions that release nuclear energy to generate _____, which most frequently is then used in steam turbines to produce electricity in a nuclear power plant.
内容
- 0
Rich in coal, abundant in oil and gas, while coal is the most important basic energy and raw material in China.
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The dry ash free volatile content of a coal is 7%, which is most likely to belong to (). A: Bituminous coal B: Anthracite C: Lignite D: Lean coal
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The dry ash free volatile content of a coal is 47%, which is most likely to belong to (). A: Lignite B: Lean coal C: Anthracite D: Bituminous coal
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Hammer mill （磨煤机）is used to _____________ coal before entering into the boiler.
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Which type of barrier to entry allows the electric company to maintain a monopoly over the production of electricity?