已知函数fx的定义域为R，对任意实数x,y满足

《李世民畏魏征》的译文 world的or发什么音 魏徵与唐太宗 选自《资治通鉴》 译文,摆脱啊!谁知道一定要译文全部哦!拜托了,谢谢! 英语翻译 jenny didn't know how she could find the lost keyi don it know what i should do with the broken bike改简单句 The old lady didn't know___when the house caught fire.为什么选C啊?AD A how to do B how to do it C what to do D what to do it 明月_____ 填叠词举例：清风（徐徐）大虾们,明月（）? _____(If /whether) I won or lost ,she didn't want to know . How I wish I could kept it!这句话有没有语法错误?我想翻译“我多么希望我能保留它!”或者能给我提供更具有文采的英文?感激不尽! How I wish I could have such a kind of friend用了什么句型 i wish i could 和I wish i can的区别?（用法） 'How I wish I had a car!'这一句用的是什么句型?这种句型怎么用?什么时候用>?Please help me ..I'm waiting for the answer~ how I ____ you !I wish I could write asbeautifully as you do .(convince; envy ;involve; failure;panic; permanent; remarkable ; reality ) 选出括号中的单词,并用适当的形式 It all started when she asked me if she could copy my homework是什么意思 she asked me __ she could copy my homework填 if 还是 weather ,为什么 初二英语之比较级训练, 求初二英语比较级clever的比较级 .Liu Ying is ___________________(更容易相处）.选词用适当形式填空 ：funny ,calm ,wild ,heavy ,generous ,clever ,easygoing ,outgoing ,serious .1.I'm quieter and more serious than Mary .She is a “刚才猫从树上跳到了地上”用英语怎么说?如题,过去时态, 英文：苹果长在树上 猫坐在树上 这只猫在树上用英语怎么写? i wish i could see you againa so could ib so do i c so did id so had i 唐太宗,魏徵,长孙皇后之间的故事?要串起来,不要分开的黏贴~ 芳草______(叠词) 芳草~（填一个叠词） 09年6月英语六级证书下发时间如题谁知道啊,不是口语证书,是笔试的证书 bring it all back的歌词~don't stop的英文版~谢谢~ 英语翻译 Bring It All Back的中文歌词谁能给下... work的or发什么音 Ben can bring it back_____ short 里面的or发什么音 bird的ir发什么音 work的or发什么音谢谢 bring back/bring on/bring in/bring out/bring up的区别?