物流技术的应用及其装备的配置只需根据物流系统的成本目标和服务质量进行考虑。
参考答案:错
解析:物流技术的应用及其装备的配置必须根据物流系统的成本目标、服务水平和质量进行综合考虑。
单位98名正常成年女子的血清总胆固醇(mmol/L)频数分布如下表,该资料应该绘制
()
A.条图
B.百分比条图
C.线图
D.直方图
E.散点图
—What did John say?
—He told me that he_________ a cold for three days.[ ]
A. has caught
B. had caught
C. has had
D. had had