Ventilators in position 1 theC.oamings of whichE.xtend to more than ( )above theD.eck,A.nd in position 2 theC.oamings of whichE.xtend to more than ( )above theD.eck, need notB.eF.itted withC.losingA.rrangements_ _ _ _
A.4m, 2.3m B.4.5m, 3m C.2.3m, 4.5m D.4.5m, 2.3m正确答案D
第二章 第九节 主机与辅助动力设备