Medium speed engines have a _____ power to weight ratio than the slow speed two strokes b
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Medium speed engines have a _____ power to weight ratio than the slow speed two strokes, but due to the higher speeds tend to have _____ maintenance intervals.
A.higher/reduced
B.higher/increased
C.lower/reduced
D.lower/increased
请帮忙给出正确答案和分析,谢谢!
