( ) is not a real coal, but only a precursor.
A: Anthracite
B: Bituminous coal
C: Lignite
D: Peat
A: Anthracite
B: Bituminous coal
C: Lignite
D: Peat
举一反三
- The most easily oxidized coal is (). A: lignite coal B: bituminous coal C: lean coal D: anthracite coal
- 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
- 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
- ( ) is not a real coal, but only a precursor.
- Originally, E.U was only limited to coal and steel.