什么叫正投影

Dare To Dream 歌词 Dare to wrong and to dream Dare to Dream Big Dare to Dream Big Dreams 少了个 Dreams 韩愈的师说的说字咋读说字可是我看到网上有人说读说啊 We are surprising at the thing.改错 all the house are in holland改错 The children are all happily(改错） you__(always,watch)TV.you should do something more active 计算器频幕上grand total 计算器现在只能按一个数,不能接下去按 under,We,the,put,presents,tree,the,Christmas 连词成句 连词成句 tree,some,we,under,next,cards,put,christmas,连词成句tree,some,we,under,next,cards,put,christmas,the（,.） she felt it a great shame _ so severely 为什么是C I have had a grand total of 2 defective products 这里的a grand of grand we hung many (o )on the christmas tree Basketball has a history of nearly 300 years.Todays it's still loved by __the young __the old.A.both;and B.either;or C.not;but D.neither;nor选什么?请问理由?Today不加s，打错了。 Alice (练习)playing the piano every morning 怎么填中间的空? Dad puts a big star at the top of the Christmas tree是是什么意思 Throughout the history,the mosequito has been not only a nuisance but a killer,carrying some of the deadliest diseases known to man.帮忙改个错,就一个错. 螃蟹过街-- It took Sally a whole year to help him learn Eglish.（保持原句意思） Sally spent a whole year——him learn English. I've been working hard for a whole year. losing a whole year 歌词 FYI 和 写出下列各词的反义词 1.HERE 2.BIG 3.SMALL 4.BIACK 5.TALL 6.STRONG 7.OID 8.COME 翻译For a whole year my father is always busy ----weekdays.weekdays前用哪个介词 weather working And I will fly over to see you with Christmas FYI怎么样 FYI指的是? Danny is throwing the basketball __the net