初三英语寒假作业答案

黄继光英雄故事作文 黄继光 英雄故事的名称怎么改要写日记 某品牌自行车的质量为34.2kg,其中橡胶占总体积的1/3.其余部分为钢材.已知自行车所有钢材质量为31.6kg（ρ钢=7.9×10kg/m³）,求：（1）橡胶的密度是多少?（2）若将所用的钢材换为密度为4kg/c 画出物体A的受力分析示意图.（A都在水中）我想知道为什么拿图甲来说处于平衡状态时向上的力有F和F浮两个线段长加起来比G的线段长大了 黄继光的英雄故事为什么 某四冲程柴油机,汽缸横截面积为50cm方,活塞行程为100mm,做功冲程燃气的平均压强为7乘于10的五次方Pa 求：一次做功冲程气体做功多少?若曲轴传速为1200r/min,这台柴泳机的功虑是多少? 英语翻译人与动物有一个决定性的不同点,动物依靠食物活着,人依靠爱活着上句台词用英语翻译成there is one decisive difference between human and animalthe animal eats but the human loves这样翻译对吗?意思有 遇到不会译的口语了1.You can take your time though.2.I don't want to be the last-minute person next time.3.Freeze.4.He is a serial slasher.He made a move on my sister last year and now he's trying to get me. 小青用来玩水的圆锥形容器中装有0.2L水(如下图）,水面高度正好是圆锥高度的一半,这个容器还能装多少升水?（提示：容器底面半径等于水面半径的2倍~） Starfish are very popular with children.They are often called “sea stars” and they aren’t part of the fish family.There are more than 2,000 kinds of starfish in the world.The smallest starfish is only 1 or 2 centimeters wide.The largest is more 速求答案啊啊啊!哪位大神会做 爱国读后感作文由下面的一篇文章写读后感：钱学森1955年10月1日清晨,广阔无垠的太平洋上,一艘巨轮正劈波斩浪驶往香港.一位40来岁的中年人,迈着稳健的步伐踏上甲板.阵阵海风不时掠过他 数学十七题,求大神啊啊啊啊啊 爱国文章读后感,急!谢了. 英语翻译I was born in an ordinary family,I remember when my toddler,the parents taught me to read,learning to talk.With the parents want the mood,I grew up day by day.I started school in 2007,and since entered the school,I found that not only lit 英语翻译❏ Starting an informal conversation(I want to tell you something.)1.Listen.2.Listen up.3.Get a load of this.4.Get this5.Guess what?6.Guess what I just found out.7.Have you heard the latest?8.Did you hear the news?❏ Showing d 作文600字速,明天交 爱国主义观后感作文 英语翻译你知道机场在哪里吗?时间来不及了,我需要去机场接我的表哥 英语翻译因为我不会草率地,想当然地去处理一些我从未遇过的不确定情况. 倒数第二步为什么 8100-36RL 大于或等于 0 解得R大于或等于225,应该是小于或等于225啊? 为什么选C不选A英语问题这三道你看下 其中有一道是追问 为什么不选A或C 英语问题Which_did you enter for in the sports meet?A.competitions B.incidents C.sports D.events 这个英语题为什么选C不选AFor many cities in the world,there is no room to spread our further( )New York is an example.A for whichB in whichC of whichD from which 爱国文章读后感 将质量为m、温度为0度的雪（可看作是冰水混合物）投入装有热水的容器中,热水的质量为M,平衡后水温下降了t；向容器中再投入质量为2m上述同样的雪,平衡后容器中的水温恰好又下降了t.（ 某电厂与某工厂建立了一对一供电关系,电厂输出功率为P,当用电压U1直接为工厂供电时,工厂得到的电功率是P1,当用电压10 U1向工厂供电时,工厂得到的电功率是P2,则P2应等于（ ）A.P/10 B.9P/10+P1/1 弹簧的弹力遵循胡克定律,胡克定律的条件是弹簧发生___1____形变：胡克定律的内容是___2____,用公式表示___3____,弹簧的劲度系数取决于弹簧的___4____ ,___5____ ,___6____请复制我的内容,将横线去除, 帮忙找刘胡兰光荣事迹及感想的文章要求不要转一篇完整的文章,最好是多篇文章组合的 字数在3000字.重在感想 His father used to get_______he gets now.A.five times the moneyB.as much five times money asC.twice the money as much asD.twice as much as the money请问D错在哪里.In______Marx began to learn Russian.A.a 1870B.1870sC.the year of 1870D.the 1870's 刘胡兰事迹读后感（450字以上）急用! 1.This was the reason_____he gave ____ his being late.A.why；of B.the;for C.which；of D,why;for为什么选B,第一空填which不行吗,理由也是物,那that是万能关系代词啊2.Don't make any changes about the plan.Just_____it as it is.A.ma