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怎样快速提高运算效率 北师大版初一数学下期末复习提纲直接的 怎样提高写作业的效率 [速度,准确性,记忆] [三方面] lg2除以二和lg3除以三的大小 《有趣的发现》说明了什么? lg8的9次方除以lg2的3次方怎么解打错了，是log lg40除以lg2 lg30除以lg2=?,帮帮忙,在线等 自然界的分布规律有哪些我已经知道了。如樱花。 自然界的最准确定律都有哪些? 自然界中的基本场有哪些? 初一下册生物提纲 求初一下册生物概念北师大版的 初一下册生物的期末提纲是人教版的 做个有趣的人好还是做个严肃 点的人好呢? I am from Japan 一般疑问句错了应该是特殊疑问句 The children were so happy that they could h_____ speak 1微米.有多长啊.1纳米是多远啊.我知道1纳米=0.001微米=0.000001毫米=0.0000001厘米=0.00000001分米=0.000000001米.但是怎么样有一个很好的比喻可以说明1纳米有多长.1微米有多长.那样的长度怎么样才可 they were ( )excited that could hardly say a wthey were ( )excited that could hardly say a worda.very b.too c.so the student were so tired that they did not finish their homework改为简单句 找错并改正They were so exciting that they could not say a world. 我是小白,18-200和55-210的镜头,用最远焦距拍同一距离的物体时,那个拉得最近,拍的物体最大 第一大题 第一题小学英语 第一大题第二大题 when the fire broke out,some people just jumped from the windows instead of waiting_____for being rescued to be rescued为什么 fire-and-hire attitude 原文是Is fire-and-hire attitude right or not when employing people? we couldn't help crying when we heard that ten people were burnt to_______ in the firewe couldn't help crying when we heard that ten people were burnt to_______ in the fire用die的适当形式填空 At least 89 people were killed when _______ fire took place in a hospital in the easternIndian cityof Calcutta. A. / B. a C. an D. the BD详解谢谢.还有冠词在选择第一道的用法 初三 单反相机镜头使用不同的焦距拍摄同一物体,画质有区别吗以一般的套机镜头18-55并拍摄同一物体为例,我在远处用55端拉近物体拍摄（物体填满整个取景器）和我在近处用直接用18端拍摄该物 单反相机镜头焦距范围的毫米具体指的是什么?单反相机的镜头焦距段提到比如55-88mm/F1.4 或是 18-200mm/f3.5 5.6,我知道这带表的是镜头的焦距范围,最小多少,最大多少,我所不明白的是88毫米具体 求：有什么名人读好书的事例 在线等啊~~~大家速度