Confucius was a great man ________ sayin 发布时间：2017-06-23 18:21 │ 来源：www.tikuol.com 题型：选择题 问题： Confucius was a great man ________ sayings are still famous.[ ]A. which B. whose C. what D. who
题型：选择题 下列说法正确的个数是（ ）①样本的方差越小，波动越小，说明样本越稳定；②一组数据的方差一定是正数；③抽样调查时样本应具有代表性；④样本中各组数的频率之和一定等于1．A．1个B．2个C．3个D．4个 查看答案
题型：选择题 英译汉: "description of goods; veterinary health certificate quarantine; certificate for conveyance ( )。A．兽医卫生证书；货物名称：运输工具检疫证书B．运输工具检疫证书；货物名称；兽医卫生证书C．货物名称：兽医卫生证书；运输工具检疫证书D．兽医卫生证书；运输工具检疫证书；货物名称 查看答案