Q4
How much is the calorific value of semi-anthracite coal?
A.
85 to 88 kcal/kg
B.
850 to 880 kcal/kg
C.
85000 to 88000 kcal/kg
D.
8500 to 8800 kcal/kg
AnswerAnswer: Option D
Solution
Answer: Option D
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