_________(59)A.oil B.liquidC.power D.fuel

____ can not cause oil flow from water outlet of self－cleaning separator.A.Oil temperature

It can be learned from the statistics in the 2nd paragraph that______.A．oil production is

59._________A. rulesB. proceduresC. regulationsD.

59._________A.. creativityB. reliabilityC. intell

59._________A. specialistB. assistantC. supporter

59._________A.. monumentsB. graveyardsC. tabletsD