ode45定步长

有红白黑三种颜色的台球,其中红色的和白色的共有23个,红色的和黑色的共有20个,白色的和黑色的共有25个,三种颜色的球各有多少个? 有红白黑三种颜色的台球,其中红色和白色的共有23个,红色和黑色的共有20个,白色和黑色的共有25个,三种颜色的球各有多少个?列式 有红、白蓝三种颜色的台球,其中z红色和白色的共有23个,z红色的和黑色的共有20个,白色的和黑色的共有25 Wish me good luck and success tommorow是什么意思 Tomorrow is my birt hday .I wish your ha ppiness .happiness and good 她难道还没听说那个消息吗?英语翻译 好消息翻译成英语 一个诚实的女孩用英语怎么说 您相信她跟她的父母说了谎吗?我我不相信,她是个诚实的姑娘 英语怎么说 您相信她跟她的父母说了谎吗?我我不相信,她是个诚实的姑娘 这句话英语怎么说 请问Good luck for Good luck for you为什么可以不可以用good luck to you还有 say goodbye to you 不能用发for reading books.what about you?nice to meet you,too.what do you like doing,benny?good morning.i'm同学们，请你大声朗读下面的句子，并用A,B,C,D,E,F,G重新排列下列对话A.reading books.what about you?B.nice to meet you,too.what do yo What books do you like reading?Which book would you like to read?I’d like to read a book on animals三句话译成汉语 1.what kind of books do you like reading?2.why do you like these books 3 what do you think of reading books 求60字作文 ____ NBA star.用a 还是 an一个NBA明星.n不是元音发音吗,用an对吧? Jeremy Lin,______NBA star,used to be ______unknown player in New York.A.a a B.an an C.an a D.a an 英语：I wish you good luck all day这句话通吗,语法上或者语序不符合英语的语气,请指正 2014年2月7日往后数995天是什么时候? I wish you'll hove a good luck you should take the medicine three times a day 把time a day提问改成一般疑问句 英语翻译翻译What are you reading.It's a book about the future.Sound cool,so what will the future be like?Well cities will be more crowded and polluted,There will be in great danger.That sounds bad!will we have to move to other planets?Maybe,But take,three,medicine,day,the,should,times,you,a,day连词组句 what book are you reading?这句话的语法对吗?应该是which book are yo reading 5.A:How often ____________ take the medicine?B:You should take it three times a day.A.I shouldB.I should toC.should I The boy should take the medicine three times a day(对three times a day 提问) -_____?-I'm reading a book.A.What about you B.Really C.Why not D.What are you up to NBA player 前表示一个用a还是an the tallest man over there is an NBA pLayer 为什么要用THE 不能用A .NBA前面为什么用AN不用A a NBA player 还是an NBA player I love reading.What about you?A、yes,I do. B.Yes,I am. c.Me,too. d.No,I don't. 我上网就是正确的选择 英文翻译