作业帮Jerry老师的身份

一块圆形磁铁的面积是3.5,那么线圈的直径要多少才能比磁铁的面积大 我在山上捡到一块石头,圆形的（不太规则）直径5CM.用线吊起来在静止时用磁铁靠近它,它会不停的转, 实验用需要钕铁硼磁铁,规格为直径15cm,高度为25cm圆柱形状,中间空心直径5cm.请报价.另请注明多少高斯. 电影对白的翻译Strangers from distant lands, friends of old. You have been summoned here to answer the threat of Mordor...They run as if the very whips of their masters were behind them. 求初中文言文排序 好的话奖励50分求河北省冀教版文言文排序顺序：按照时间顺序春秋 战国 秦 三国 两晋 两汉 魏五代 十国 唐宋元明清 这样的顺序!格式时间 名称 作者如：春秋 ＜论语十则 单基因,多基因,染色体异常遗传病病因都是什么,具体的, 求雅思一个月复习计划（要上6.5）3/20考过一次,听力5.5,阅读6,写作5.5,口语6,总分6.准备在5/8再考一次,要上6.5,有什么好的复习计划吗?每天最多复习2-3小时,有什么具体的复习资料推荐吗？ 15 帮我翻译几句话 翻译成文言文 4 2012-05-14 作者 他们字什么,号什么,哪个朝代的 古文字体：这都是什么字?什么朝代的,字的顺序, 线粒体遗传病的特点是什么 对因人类的线粒体基因突变所致的遗传病和因Y染色体上基因突变所致的遗传病的特点描述正确的是：A、前者的遗传病只在女性中表现.后者的遗传病只在男性中表现.B、前者属于细胞质遗传, 求20天的雅思复习计划~~（力争7.5,保7）快要考雅思了,但是还没怎么复习.请各位高手帮忙制定计划,给个好建议!本人情况：一直英语还不错,高考英语一般可以打135以上.但是上大学来碰英语少 人类神经性肌肉衰弱症是线粒体基因控制的遗传病 雅思复习计划,求20天的雅思复习计划~（力争7.5,保7） 求高手帮理解一句英文电影对白前几日看到一部电影,是摩门教徒到处布道,碰巧来到一家时的对白：教徒：Black people are allowed to join the group since 1969.主人：Since disc and weman?教徒：Weman can't be me 英语翻译. 文言文 1.闻里人相庆,始知为人情所患,有自改意2.且人患志之不立,亦何忧令名不彰耶? 英语翻译True love was travelling on a gravel roadI followed into darkness,defied the bitter coldAs the lights of my hometown faded into nightI lost all my hope then,to ever make it rightAnd I...can't tell you what I sawNo,you've got to make it on 周处文言文 英语翻译Clean SlateMy God,forgive me but I don't count this oneJust one life is not enough to learnI am surprised how fast the years passed byHowever I have just started to grow upI still am not right in the headAssume this (this life) as a trial 英语翻译Feel no shame about shapeweather changes their phraseeven mother will show you another waySo put your glasses onnothing will be wrongthere's no blame,there's no fame,it's up to youThe first words should be foundwhatever holds you backI ca How many holidays do you know from this passage是什么意思 什么鸟类最长寿 英语翻译Christina Aguilera - WelcomeWoah,ohhWelcome to the greatest showGreatest show on earthYou've never seen beforeHere the fairytale unfoldsWhat's behind the smoke and glass?Painted faces,everybody wears a maskAre you selling them your soul?W 英语翻译Happiness is a Warm Gun Happiness is a Warm Gun ...She's not a girl who misses muchDo do do do do do- oh yea!She's well acquainted with the touch of the velvet handLike a lizard on a window paneThe man in the crowd with the multicoloured 英语翻译Asking sojourners what they are likely to learn while they are abroad often draws puzzled looks.Asking sojourners how their values or worldview might change is an unfair question :the process is so deep and living in another country is so 雅思一个月的复习计划上个月考了一次,分数很低,基本属于那种傻子分,我的要求不高.5.5或6分就行,本人听力不是很好,每次听的时候都不能正确的听到答案,阅读还可以,能达到5分,写作背的模 How many years have you worked here?____ten years ago.为什么不能用Before而要用since? 内蒙古高原主要的优良蓄种是 什么鸟类最长寿?如题 求英语搞笑短剧 急中英结合的 其实就是中文的剧本 结合英文搞笑的 我是初一的 这个剧本很急 请大家多多分享好剧本 如图所示,一块小磁铁放在铁板ABC的A处,其中AB长x1=1m,BC长x2=0.5m,BC与水平面间的夹角为37°,小磁铁与铁板间的引力为磁铁重的0.2倍,小磁铁与铁板间的动摩擦因数μ=0.25,现在给小磁铁一个水平向左