A、愈長(zhǎng) B、愈短 C、不變
A、不變 B、變短 C、變長(zhǎng)
A、當(dāng)用低檔時(shí)省油 B、當(dāng)用高檔時(shí)省油 C、檔位對(duì)燃油經(jīng)濟(jì)性無(wú)影響