( ) is not a real coal, but only a precursor.
举一反三
- ( ) is not a real coal, but only a precursor. A: Anthracite B: Bituminous coal C: Lignite D: Peat
- Originally, E.U was only limited to coal and steel.
- Biomass is the only new energy that can replace fuel on a large scale. (coal / petroleum)
- According to the writer, ______portrayed in books may become our companions and friends. A: all characters, real and imaginary B: only real characters C: only imaginary characters D: none of the characters
- The only real security that a man will have in this world is a __________ of knowledge, experience, and ability.