A.全封閉式; B.半封閉式; C.敞開式; D.不一定
A.2/3,1/3; B.1/3,2/3; C.2/3,2/3; D.1/3,1/2
A.風(fēng)源驅(qū)動熱泵 B.燃料發(fā)動機(jī)驅(qū)動熱泵 C.空氣源熱泵 D.蒸汽發(fā)動機(jī)驅(qū)動熱泵