题目

读“甲、乙两工厂万元产值主要成本百分比”比较表，回答关于甲、乙两工厂劳动力成本的叙述正确的是A．甲、乙两工厂所属工业类型对劳动力数量的要求相当B．经济发展水平的提高使甲、乙两工厂劳动力成本比例上升C．甲工厂属于廉价劳动力指向型工业，工人的工资水平低D．乙工厂属于技术指向型工业，从业人员的工资水平高 －Explain why you have always been late for the past two weeks． －Every day I come to the corner, a guidepost ________ "School－Go Slow"． [　　] A． has said B． says C． will say D． had said