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223.Schools across China are expected to hire 50,000 college graduatesthis year as short-term teachers,almost three times the number hired last year,_______ reduce unemployment pressures.（江苏）A.help B.to have helped C.to help D.having helped Schools across China are expected to hire 50,000 college graduates this year as short-term teachers,almost three times the number hired last year,reduce unemployment pressures.A.help B.to have helped C.to help D.having helped 请教您一个关于高中生物碱基配对方式有几种的问题书上说碱基互补配对方式有A-T、A-U,G-C,G-U这4种.但我认为为什么不是A-T,T-A,A-U,U-A,G-C,G-U这6种呢? Schools across China are expected toSchools across China are expected to hire 50,000 college graduates this year as short-term teachers,almost three times the number hired last year,___ reduce unemployment pressures.A.help B.to have helped C.to help from across 请不懂的,不确定的,不要回答.. Thousands of college graduates are working in the countryside in China.And ______are planning to .Amuch more Bmany moreCmore many Dtoo much 碱基配对的规则 高中生物一题（第二题） 哲学人生2世上有绝对不怕任何程度折磨的酷刑吗?是任何程度啊?也就是折磨所带来的痛苦可以无限大.这世上真有这样的人吗?我认为哪怕就是革命烈士也没这样做到过；那你们认为世上是否 试管动物,转基因动物,克隆动物,各在高中生物所需的技术手段 C++新手问题：编译时提示：[Linker error] undefined reference to `operator*(double,complex c我想写一个复数乘实数的函数（其中的复数是一个叫complex的class）：class complex{private:double m_r; //实部double m_i; //虚 find a english native speaker who can be my language partner?I want to improve my oral english!maybe you are interested in Chinese as well.please contact with me by email:vicky_mengel@yahoo.com.cn,I'm a easy-going girl!thanks^^ 一个圆柱与一个圆锥的体积和底面积相等,圆柱的高是圆锥的高的三分之一,是对还是错? 一个圆柱与一个圆锥的体积相等,已知圆锥的底面积是圆柱的三分之一,圆锥的高是圆柱的多少 太空中如何对话关于声音的,能否想办法让它在真空中传播 1个圆柱和1个圆锥的体积相等,圆锥的底面积是圆柱的三分之一,圆柱的高是3厘米,圆锥的高是多少厘米?快！求过程！详细就选为满意答案！急！越快越好！详细点！详细点！ 空中乘务口语有哪些啊, POP的美字怎么写 葡萄糖在小肠中被吸收需要ATP的消耗么 为什么是主动运输呢? 器官移植的意义21世纪最伟大的生物工程 中国特色社会主义法治的政治基础是什么? 已知函数f（x）=1+2/x其中f（a）表示x=a时对应的函数值,如f（1）=1+2/1.f(2)=1+2/2.f(a)=1+2/a.则f(1)xf(2)xf(3).f(100)= 解三元一次方程组. 已知函数f(x)=2^x-1/2^|x|,(1)当x 仍爱着你,可惜已经没有机会了.《翻译英文) 给我机会,让我继续再爱你!的英文怎么写呢一定要准确的! 已知tan（θ-π）=3/4,则cosθ= 打圈的那道. 已知tan（θ-π）=3/4,则cosθ=帮帮忙 三道数学题求解!打出来给高分!用红圈标起来的那些题这两个题都忘了怎么算了,答案告诉我是顺便教我怎么算,谢谢!这一题实在不会,拜托了 阿拉伯语难学吗? e n c c e i s组成的单词