⊙O的直径为50cm,弦AB∥CD,且AB=40cm,CD=48cm,求弦AB和 发布时间:2017-04-27 18:44 │ 来源:www.tikuol.com 题型:填空题 问题: ⊙O的直径为50cm,弦AB∥CD,且AB=40cm,CD=48cm,求弦AB和CD之间的距离______.
题型:填空题 审核下列网络文章中的语句,没有语法错误的是()。A.经过他再三解释,才使老王勉强谅解了他。B.学校办学水平低,传扬出去,准会影响学校声誉C.如何防止水果免遭腐烂,成了当务之急。D.古今中外能与他媲美的音乐家可谓空前绝后 查看答案
题型:填空题 It is only when a football player has aged and been through many battles ________ he learns an important lesson: there is no “I” in “team”.A.afterB.beforeC.whatD.that 查看答案