1.

The calorific value of the natural gas is?

A. 1200-1400kcal/m<sup>3</sup>
B. 500-800kcal/m<sup>3</sup>
C. 800-900Kcal/m<sup>3</sup>
D. 12000-14000kcal/m<sup>3</sup>
Answer» E.


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