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用最简方式解一元二次：（8/5t）^2+（10-4/5t）^2=（10-2t）^2 大米表皮含有哪种维生素?是维生素B吗?具体是维生素B的哪一种? 什么东西含有的维生素B最多? 长颈漏斗在锌和稀硫酸制取氢气中的好处? the retyped password is not correct,please try Your hair doesn't seem to like being straightened.这里的being可以省略吗?可不可以给我举几个being的例子? 怎样解决直流母线侧电压降低的问题? 用拟人的手法描写小麦的生长过程知道的请回答, 英语翻译When nature is left alone,a balance is reached among the animals and plants living in one area.But when man starts his work in nature,the balance is likely to be destroyed.He grows a crop and takes it away to eat then there are no dead le 220V直流母线在绝缘非常好的情况下,用电压表测得正极对地电压（ 0 ）V.为什么是0呢 这是电气值班员搞不懂为什么 you know a lot of people in your life to have a picture in your mind of people,places etc from the past——r_______根据词义解释写出单词 what's your opinion of stopping people ________in public places?A from smoking B smoking C both A and B难道 stop后面from可有可无 My right hand is clean . But my ____ hand is dirty.小偷的英文怎么拼? 为什么不用镁片和稀硫酸反应取氢气,而要用锌?2个原因 什么是International_Speculative_Capital? Tony usually has lunch at school every day改为否定句 Tony____ ____ lunch at school every daynever has 可以毛 returned on capital employed（财会）是什么意思? operating capital employed 18等于多少的平方 芝麻的出油率45%,菜籽油的出油率是42%,多少千克的菜籽油榨出的油和140千克芝麻榨出的一样多?我不要方程 用拟人的手法写小麦从小长大的过程中是如何积累那没多有机物的?1000字 I—— you a good school year.A hopeB wishC wantD think Hope us having a good marks这是我们班成绩很好的一个同学发的一句话,这句话对吗?有没有语法错误?我觉得应该是Hop us have good marks. Ann is _than I am. A.a year older B .older a year C.shorter a head D.a head tall 周而复始 解释并造句造句不少与20字! C++循环解释第一行一个整数X表示淘淘带的钱数.第二行一个整数N表示 淘淘想购买的东西数量以下N行每行一个实数表示物品的价格.输出要求Yes表示淘淘带的钱足够No表示淘淘带的钱不够FOR循 什么是阐释的循环?（阐释学） 21616—first and third years live on the main site. rooms of the second and third year are allocated by ballot, and students worried about their finances can request a smaller, cheaper room. 3817什么意思想问：1—first and third years live on you,year,one,I'm,than,older（.） you,year,one,I'm,than,older（.） 甲乙两人于上午8：00分别从一条公路的A、B两地相向匀速而行,至上午8：30,两人之间的路程缩短至10千米;至上午10：30两人之间的路程增大到44千米.求AB间的距离.一元一次方程解 要分析 气焊和气割均属于什么变化!