14. The energy per unit mass of a fuel is often quantified by the heating value of the fuel. The
heating values of the residual fuels are typically ________ % lower than the distillates.
(A) 5~7
(B) 8~10
(C) 11~13
(D) 14~16
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統計: A(512), B(226), C(86), D(45), E(0) #3170978
統計: A(512), B(226), C(86), D(45), E(0) #3170978