阿摩線上測驗
24. Hydraulic drives for deck machinery can be sub-divided into three features. Which
following cannot be?
(A) With variable displacement systems
(B) Constant pressure
(C) Constant volume
(D) Constant temperature
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統計： A(274), B(173), C(177), D(559), E(0) #2014781
統計： A(274), B(173), C(177), D(559), E(0) #2014781
