若植物鲜重为100g,10%是干物重,其中氮、磷、钾的含量分别为4%,0.5%,2%;植株对肥料的利用率分别为20%,10%,20%,则应该施如入土壤中的三要素的量分别为() ["0.4,0.05,0.2","4.0,0.5,2.0","2.0,0.5,1.0","10,2.5,1.7"]
一般情况下,FORMATA:/Q的执行结果是() ["快速格式化软件盘","格式化软盘","快速格式化硬盘","格式化硬盘"]
以下哪些需要登报公告后,机场交警经核准后给予补发() ["机动车牌照、驾驶证","行驶证、驾驶证","机动车牌照、行驶证","驾驶证、通行证"]
一氧化碳传感器应垂直悬挂,距顶板(顶梁)不得大于300mm,距巷壁不得小于(),并应安装维护方便,不影响行人和行车。 ["100mm","200mm","300mm","400mm"]
新办的劳动就业服务企业,当年安置城镇待业人员超过企业从业人员总数()的,经主管税务机关审核批准,可免征企业所得税3年。 ["30%","60%","70%","75%"]
成就工资的运作方法有哪几种?