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1. |
_The calorific value of petrol is about$? |
A. | 36.5-38.5 MJ/kg |
B. | 39.4-42.5 MJ/kg |
C. | 42.7-43.5 MJ/kg |
D. | 45.5-47 MJ/kg |
Answer» D. 45.5-47 MJ/kg | |