試題詳解

複選題
39. 汽油噴射引擎當進行燃油壓力測試時，包括下列哪些步驟？
(A)relieve thefuel pressure
(B)disconnect the quick-connect fitting and attach the fuelpressure gauge
(C)open the fuel tank filler cap
(D)read the fuel pressuregauge 。