若不等式ax^2+bx+2>0的解为-1/2<x1/3，求不等式2x^2+bx+a<0的解集

When i came in ,I saw him _______in a chair deep in thought .When i came in ,I saw him ___B___in a chair deep in thought.A.sat B.seated C.seating D.being seated.be seated 表示坐着的状态,为什么不能是saw him being seated(看到他正坐在 be deep in thought是什么意思 deep in thought中文的意思 《孔雀东南飞》里,刘兰芝“十三能织素,十四学裁衣,十五弹箜篌,十六诵诗书”.突出了女主人公的什么性 孔雀东南飞中：十三能织素,十四学裁衣,十五弹箜篌,十六诵诗书.十七为君妇,心中常苦悲.这个是为互文还是做铺陈 在《孔雀东南飞》一文中十三能织素,十四学裁衣,十五弹箜篌,十六诵诗书,十七为君妇,心中常悲苦.一句中主要采用了哪种艺术手法?那种修辞手法?突出了主人公的什么特点? 十三能织素,十四学裁衣,十五弹箜篌,十六诵诗书,十七为君妇,心中常苦悲 的仿写,十三能织素,十四学裁衣,十五弹箜篌,十六诵诗书,十七为君妇,心中常苦悲 的仿写,（大师进） Some English questions,Give me a hand!What`s the matter with Jack?Dose he have a stamach ache?No,he doesn`t have a stamach ache.He has headache.So he must take an aspirin.Have 应该是1.2人称单数啊,怎么对话中He 后面加have 不是应该 为什么有的英语词组前有"to"?to look down upon; to fix up something还有一个单词的也有:to unpack.to care of sth.是不是加to.代表他们是动词.楼下写这么多肯定不对啊。我肯定知道to是不定式。 He wrote a letter ()he explained what had happened in the accident.用关系词填、讲解一下 The engagement of any subcontractor who shall have committed gross misconduct as per the Integrity Clause (Appendix 1),and against whom the Customer of BT shall have pronounced an award ban due to gross misconduct,shall be inadmissible unless BT shal 求the five-year engagement 五年之约,中的西班牙歌曲就是在结婚的时候唱的那个~ THE POWER OF FULL ENGAGEMENT怎么样 攻丝完后再用挤压丝攻好加工 请问一下on the way in the way请问一下on the way in the way 有什么区别 请问你on the way.还是 in the way Open you eyes (w ).Can you see it clealy now? I have sent my mother a m___ to tell her I shall be home late. That animal is _____.No one wants to see it. i am a student（改一般疑问句） there are some students ini am a student（改一般疑问句）there are some students in the room（改否定句） i've got much work to do有不对吗?难道非要说too much work to do much用在这儿有素描错? I've got to the position___hard workby this means by no means by all means by means of 选哪个 鑫这个字怎么读 鑫 这个字念什么 CAM什么意思 笔记本上CAM是什么意思 CAM是啥意思? cam是什么意思 =我有点混乱了.到底耽美中S是受还是M是攻?或者M是受S是攻?百度百科我看过了.更加混乱.直接说就好 cam 是什么意思? give it a burl 怎么翻译 李凭箜篌引的翻译