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1.一个圆锥形沙堆底面半径2米,高是2.4米,用这堆沙在8米宽的公路上铺2厘米厚的路面能铺多少米?2.长方形的长为3厘米 宽为2厘米 绕着它的任意一边旋转一周,可以得到一个圆柱.圆柱的表面积最 一元线性回归分析有哪些优势与劣势? 一个时钟是什么成语 已知a=（-3,4）,b=（5,2）,求|a|,|b|. 状语从句中While的用法 已知a=(5,-4),b=(2,3),求a.b He is one of ____ friends.A.me B.my C.mine 英语中是不是不常用 one of my friends 这种用法,一般是 a friend of mine ? 英语翻译Khong co gi,di nhanh! 根据意思找成语 5个成语 解释意思 the friend of mine不能用 因为the与物主代词不能联用,好像是因为mine也是物主代词所以不能和the 连用 an old friend of mine这就话为什么用mine 若(x^2+pX+3)(x^2-2X+q)的乘积中不含X2,X3项,求p,q的值如题 would like to do 我在这里看到的..是不是问句?还是陈述句? 用腾云驾雾怎么造句? 腾云驾雾怎么造句 A friend of mine was fond of drawing horse.He drew the horses very well,but he always began the tail.Now it is the Western rule to begin at the head of the horse,that is why I was surprised.It struck me that it could not really make any difference wh 用腾云驾雾造句 A friend of mine was fond of drawing horse. He drew the horses very well,but he always began the tail. Now it is the Western rule to begin at the head of the horse, that is why I was surprised. It struck me that it could not really make any differenc 用总之和腾云驾雾一起造句 A friend of mine was fond of drawing horse. He drew the horses very well,but he always began the ta SKF径向和轴向轴承是什么意思 成语找诗人1、瓜田李下,白璧微瑕 时钟2点15分 打一成语 "when"和"while"的句子是否能互换?如“I was just reading a book when she came into my room. 她走进我房间,我正在读书” 可否改成“I was just reading a book when she was coming into my room." 意思是否有改变呢?这个 这个句子中的while 和when可不可以互换?If you don't work hard while you are young,you may regret when you are old.至于它们的区别本人也明白,但这个句子有点讲不清楚.是个填空题. 划出他这时候想象的句子.3分 4、写出近义词：清幽（ ）恬静（ ）照耀（ ）陶醉（ ）苏醒（ ）划出他这时候想象的句子.3分4、写出近义词：清幽（　　　　）恬静（　　　　）照耀（ 爱抚、低微、逝世、幽静、纯熟、清幽、陶醉、苏醒的词义是什么? 用恬静 清幽 纯熟 陶醉 苏醒造句 用谱写幽静蜡烛失明纯熟陌生清幽琴键陶醉苏醒飞奔记录莱茵河霎时间微波粼粼探访风采赴约淡雅捉摸,造句! 1.用“苏醒、炙烤、亘古、通宵达旦、窃窃私语、墨守成规”6个词语组成一段话.