发动机气门间隙调整可分为热调和冷调,其中冷调是指发动机机不工作至少4个小时或水温油温不超过()时调整。 ["90℃","85℃","65℃","60℃"]
“汝果欲学诗,功夫在诗外”是()的诗歌主张。 ["苏轼","文天祥","陆游","苏轼"]
据《素问.标本病传论》所述,下列情况中,当先治其标的是() ["先寒而后生病者","先病而后生寒者","小大不利","先热而后生中满者","先病而后生中满者"]
《素问•脉要精微论》“头倾视深”是哪一府精气将夺() ["胸中之府","血之府","髓之府","精明之府"]
下列数值()属于一般环境条件下所指的“安全电压”是。 ["8V","24V","36V","110V"]
试述泵与风机的工作原理.