40. The ratio of cylinder volume to clearance volume for an internal combustion engine is defined as:
(A) Compression ratio
(B) Expansion ratio
(C) Clearance ratio
(D) Firing ratio
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統計: A(273), B(70), C(61), D(16), E(0) #3351392
統計: A(273), B(70), C(61), D(16), E(0) #3351392