当原始数据分布不明时,表示其集中趋势的指标() A.用几何均数比较合理 B.用均数比 发布时间:2017-05-14 15:50 │ 来源:www.tikuol.com 题型:单项选择题 问题: 当原始数据分布不明时,表示其集中趋势的指标()A.用几何均数比较合理B.用均数比较合理C.用中位数和均数都合理D.用几何均数和中位数都合理E.用中位数比较合理
题型:单项选择题 下列做法错误的是( )A.可用醮食醋的棉布擦拭表面有锈的刀具B.皮肤若被蚊虫叮咬,在叮咬处涂抹肥皂水C.鱼胆挤破后会滚出胆汁酸使鱼变苦,用纯碱清洗D.用热塑性塑料做炒菜锅的手柄 查看答案
题型:单项选择题 交际运用。A:(1)_______B: I like 'some, but I hate the others.A:(2)_______B: I like washing.A: What do you like washing?B: Everything. Dishes, clothes, and even my toys. (3)_______A: I am quite different from you. I like cooking.B:(4)_______A: No, Ijust think it's interesting to cook, but I don't eat much.B:(5)_______A.Do you like doing chores?B.What about you?C.I see.D.Do you like eating,too?E.What do you like to do?F.Would you come to my home for dinner? 1._______2._______3._______4._______5._______ 查看答案
题型:单项选择题 超声检查半月板,错误的是()A.后角取俯卧、伸膝或屈膝15°~30°B.半月板外侧距皮肤近、间隙宽、易显示C.前角取仰卧、屈膝30°~90°D.半月板前、中部显示困难E.半月板内侧表浅、间隙宽,扫查并不困难 查看答案