需要另外预计现金支出才能参加现金预算汇总的预算是（） ["销售预算","人工预算","期间费用预算","成本预算"]
以下列生物膜“流动镶嵌模型”描述正确的是（） ["脂膜由脂双层构成，内外表面各分布一层球状蛋门质","脂膜由脂双层构成，中间有一层蛋白质","脂膜由脂双层构成，蛋白质以不连续的颗粒形式嵌入脂层，脂分子可以移动，蛋白质不能移动","脂膜由脂双层构成，蛋白质以不连续的颗粒形式嵌入脂层，脂分子和蛋白质的均呈流动状态"]
正常生产时成型煤因故突然停产，此时炼焦应采取哪些措施？
门式脚手架通道口高度不宜大于（）个门架高度，宽度不宜大于（）个门架跨距。 ["1；1","2；1","2；2","1；2"]
With respect to the flow of lubricating oil through a diesel engine, the lube oil coolers are located after filters in order to （）. ["allow filtration of less viscous oil","decrease the pressure drop across the filter","improve overall filtration","all of the above"]
简述主动运输有何特点？
