A.真空表; B.萬能表; C.示波器; D.功率表
A.0.3~0.45; B.0.6~0.9; C.1~2; D.0.2~0.4
A.混合氣過??; B.點(diǎn)火時(shí)間過遲; C.點(diǎn)火時(shí)間過早; D.點(diǎn)火正時(shí)