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英语短文改错high school students sometimes feel stressed because f
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高中英语改错 nowadays,many students have some mental p
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英语句子改错the other students and she felt upprepared when tested
改错 1.The students in Class One are better in Class Two
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英语改错 ：The students celebrate his birthday by have a party fo
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这是英语改错题,Dear students,The Students'Union was going to hold a
改错 Do the students in your school know we还有一句:Does your moth
一道英语改错题The students (are reading) (in) the library.(Don't) r
单句改错 The all students are listening to the teacher now.
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英语句子改错器the students spend much too time in playi
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一.改错1.The students have gone to the museum lots of times.二.写
英语改错.紧急.The students finished their exercises in the end of
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英语改错：The students help with work in much of these places bec
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短文改错As new students at an university in Boston,many of us we
高一英语改错.急Most students study English hardly at school but the
大家来看一道改错题The students can choose whichever they like attend.
英语短文改错Most of students study English hardly at school.Theref
改错 How many students there are in your school?
英语改错 Several American students visited our school.Upon our a
你能帮帮他们吗
72*72+72+72*27*72用简便方法算
面红耳赤的赤字的意思急用
阅读材料：x+mx＝c+mc的解为x1＝c，x2＝mc；则方程x−1x+1＝2009−12010的解x1=2009，x2
世界上现存的淡水鲸只有少数几种,长江里的白鳍豚就是其中之一.
如图,AB,AC为圆O的两条弦N为AC弧的中点,M为AB弧上一点,MN分别交AB,AC于点D,E,且AD=AE,
精彩回答
长骨的三个主要结构是______、______和______．
如图所示，为一正在工作的理想变压器，原线圈匝数n1=600匝，副线圈匝数n2=120匝，C、D两点接在最大值为220√ 2 V的正弦交变电源上，电路中装有额定电流为2A的熔丝B，为使熔丝不超过额定电流，以下判断中正确的是（ ）
美国阿拉斯加的一个自然保护区内原是鹿与狼共存的，为保护鹿不被狼吃掉；人们赶走了狼。
麻烦大家给我讲解一下
在三角形abc中角abc所对的边分别为ABC已知tan（a+b）=2求sinc的值求详细解题过程啊
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