单项选择题
A.5MIN B.6MIN C.8MIN D.10MIN
A.165℉ B.175℉ C.185℉ D.195℉
A.MG2-1与VS4-1之间 B.VS4-1与VSR-1之间 C.VSR-1与GCV之间 D.GCV与燃气歧管之间