A. 利率和通货膨胀率的加总 B. 利率和失业率的加总 C. 是贫困率和通货膨胀率的加总 D. 失业率和通货膨胀率的加总
A. 500 B. 550 C. 600
A. radiated through the engine block B. transferred to water cooled cylinder walls C. conducted through the piston crown D. transferred to escaping exhaust gase