x的平方减y的平方等于1

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【急用】描写波涛或海浪巨大声势的诗或词!拜托``我说的词不是词语``是宋词的那个词``` 英语接电话用语有没有贸易方面的英语 英文接电话日常用语 一般英语标题上THE的T用大写吗比如Heal the world 写成标题时the的首字母用不用大写 you .your .way .need.hands.clean.to.this将上面改成完整正确的句子 in charge of 和in the charge of有什么区别呀? 问一下variety 的用法many varieties of 后面加不可数名词时,谓语用复数还是单数? variety的动词及用法 长江万里游鳞小奋力飞腾逐大波的意思 长江万里游鳞小奋力飞腾逐大波是何意出自何处 My friends like (clever monkeys) 括号提问 改哟办疑问句 否定句 肯定回答 《离散数学》证明题:证明R→S可从前提P→(Q→S),┐R∨P和Q推出. 离散数学证明题:证明((Q∧R)-->S) ∧(R-->(P∨S))(R∧(P-->Q))-->S This is ____ to answer.A) rather a difficult question B) rather difficult a questionC) rather difficult question D) a question rather difficult这个题考的是什么知识点呢?或者说是为什么选a!看着觉得是但是不明白为什么! This is ( ) My answer This is ( )my answer.A.the B.不填This is ( )my answer.A.the B.不填 C.a D.an I want to do kung fu (to/for) the school show.为学校的演出打中国功夫的"为"是for吧! I ___(提供) him a good job,but he ___(拒绝) to accept it.1.I ___(提供) him a good job,but he ___(拒绝) to accept it.2.She wants to see the doctor because her back ___(疼).用所给单词填空(let...down;come up with;come out;by accident;a it is __ to watch the TV shows答案是boring,boring求解析 The days are s_____ and t____ n____ are long.填入英语单词 英语翻译RT、说下不同的地方.什么时候用varied、什么时候用various 文言文 哑孝子的加点字解释原文 崔长生,生而哑,性至孝,人呼“哑孝子”.孝子既哑,左手复挛,佣工养其父母,出入必请安.后淮、徐大饥,孝子行乞于乡,人悯之,遗以糟糠,受而 纳诸箪 ,自掘野草 the days are long and nights are short. the sun rises early and sets late .两句话里面的s为什么要加s 英语翻译英文歌词如下:The days are long and filled with painWe'll throw our lives away againI've never seen in my whole lifeMy worst friend's sugar baby wifeNow my life is goneWon't you try to hold me tight?'Cause you'll be me and I'll be 哑孝子的这些词,kuai 请教一下varying与varied,various用法的不同最好有例句 various 和 varied用哪个There are 19 buildings of ( )sizes in the major part of the Academy,with a total area of 6400square meters.参考答案只给了various,但我认为varied 也可以!哪位大虾给点意见 可以改变的是态度 阅读题可以改变的是态度有位老太太请了一位油漆匠到家里粉刷墙壁.油漆匠一走进门,看到她的丈夫双目失明,顿时流露出怜悯的眼光.可是男主人开朗乐观,所以油漆匠在那 如果想法改变,态度就会改变; 如果态度改变,行为就会改变; 如果行为改变,习惯就会改变; 如果习惯改变翻译这段文字是翻译成英文···· the days 与the day 区别是什么? varied 和various 有什么区别 various 意思,和用法急