电子在导线中的速度

在一幅比例尺是1:5000000的地图上量得甲乙两地的距离是7厘米,一辆客车和一辆货车同时分别从甲乙两地相对开出,客车每小时行75km,货车每小时行65km.两车开出几小时会相遇? 教育部高等教育司的英文缩写是什么要缩写，不要全称 英语翻译我要翻译六级证,两个内容拿不准1、教育部高等教育司（去官网没看见英文的称呼,诶= =）2、阅读,写作,听力,综合,里面这个综合怎么翻译呢? 大学四级英语听力的复合式听写所占分值是多少?急! 国家教育部用英语怎么说啊?还有省教育厅怎么说 2006年6月英语四级听力有没有复合式听写 教育部高等教育司英文缩写请问：教育部高等教育司用英文怎么译?英文缩写什么? 教育部国际合作与交流司 英语怎么说 英语四级复合式听写 Curtain 的读音Curtain 、怎么读的啊 含【ai】发音的单词 LOVE AND BE SILEND是什么意思 curtain的ai的音标 If you would be loved , love and be lovable 是什么意思 I m so lonely 谢帮忙译一句话“中译英”Sorry,有查看此运费是非常之贵,我愿意你使用我们公司的运输账号安排发货. I'm so lonely中文是? That's the house where she once lived.=That's the house （　　）she　once　lived．为什么 This is the house____I lived when I was a child.A.that B.which C.in which D.in that Today is Mother's birthday,a special day on which I have a chance to express love and appreciation能帮我翻译一下这篇短文吗?谢谢你们噢,On this special day,I would like to buy something speical and expensive for Mother to show her how 言心 这个是什么字哦我不会打~拼音哦告诉我谢谢 雪豹电视剧中周卫国解释雪豹含义的是哪一集? 怎样打拼音, My mother needs some help 改为一般疑问句 This is the house that I lived two years ago.这个定语从句对吗?为什么?某些在从句中充当时间,地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换,例如：This is the house in which I lived two y Today is my birthday. It's a s day for me,s那Today is my birthday. It's a s day for me,s那里写什么 回答是It's April 1st..他的问句应该是what day is it today?还是when is your birthday? This is the house.I once lived in it.This is the house--- ---I once lived This is the house in which Tom once lived中in 为什么要放在which前面 This is the house __ he once lived __ when he was a child.A.which/in B that;/ 为什么不选B?This is the house __ he once lived __ when he was a child.A.which/in B that;/ 为什么不选B?一般的答案都没有说为什么不选择B, This is the house __ he once lived __ when he was a child.A which in B that;/ 可以选B吗?为什么? I don't think Peter is too young to take care of the pet dog ____A correctly B properly C exactly D actively说清楚为什么