one-twentieth是1/20那么2/15,1/3,17/100是什么啊

one-twentieth是1/20那么2/15,1/3,17/100是什么啊 初一英语,有个问题没搞懂!twenty-one怎么变序数词?是twentieth-one吗? in ones twentieth 和during ones twentieth 什么区别? in the mid-twentieth century什么意思?它的范围是19XX还是20XX? the twentieth century是名词短语? please turn to page___and look at the __picture in this unitA.twentieth; one B.twenty ;one C.twentieth;first D.twenty ;first Now please to Page ____ and look at the ____ picture in Lesson ThreeA.twentieth,one B.twenty,one C.twentieth,first D.twenty,first I think that the ____ century will bring us more hopes.A.twentieth-one B.twenty-one C.twentieth-first D.twenty-first请解释 英语第二十一,应该写成twenty-first,还是twentieth-one,还是twenieth-first? 21世纪 21st century 用英语怎么读 twentieth one 20道英语选择题（序号不对,对不起）21.( )What did you and your friends do _____ different holidays?A .in b.on c .at22.( )----When‘s your birthday?---It’s on the ____ of November.A .twentieth -one b.twentieth-first c.twenty-first23.( We are sure the ( ) century will bring us more opportunities.A.twentieth-first B.twentieth-oneC.twenty-one D.twenty-first顺便翻译下句意,谢勒 twentieth是什么意思 twentieth是什么意思 twentieth 急 one of +名词,那么one of是形容词性? he can draw a picture at an object in ____a human hair.He can draw a picture at an object in ____ a human hair.A.one-twentieth the thicker than B.one-twentieth the thick ofC.one-twentieth the thickness of D.one-twenty thicker than我知道意思 但 he can draw a picture at an object in ____a human hair.He can draw a picture at an object in ____ a human hair.A.one-twentieth the thicker than B.one-twentieth the thick ofC.one-twentieth the thickness of D.one-twenty thicker than每个选项都说,