如图所示，在真空中有两个等量的正电荷q1、q2，分别固定于A、B两点，C为A、B两点电荷连线的中点，

关于not until,until中的短暂性持续性动词据说主句为延续性动词,译为：做某事直到某时主句为短暂性动词,译为：直到某时才做某事然后not until主句用延续性,until主句用短暂性.这个规定的很严 not until?持续性动词和短暂性动词?not until的用法和持续性动词和短暂性动词有什么联系 not… until的until后面跟什么动词延续性的还是暂短性的 童年在问号里长大是什么意思? 填空It is a week____we hot here.1.It is a week____we hot here.（还有,这句子怎么翻译?）2.She finished her homework,_____she played outside.3.I don't think I shall go___you may if you wish.(but/unlee/so/and,并求翻译)动词现在式填 童年就是这样在问号中慢慢长大是什么意思 童年在问号里长大是什么意思啊 is it hot in here or is it just you What do you do on the weekend 回答完整的句子 太阳下有朵云,云下有两滴雨是什么天气符号?、 do on weekend?do What you the 组成的句子 not do的过去式 not do的过去式是什么? Not do 和 not drive 的过去式是什么? My teacher is here.对here提问 天气预报中说的"雨夹雪",在英语里是怎么说的 谁能告诉我,天气预报不是说雨夹雪的么?怎么下的是冰雹 为什么会有雨夹雪?雨夹雪是怎么形成的 Send my regard to your lovely wife when you ____homeSend my regard to your lovely wife when you ____(write)home+reason He is always ready to others So we make him our m___ 顺便翻译一下 1.My mother and I go to the shops tomorrow afternoon.2.Please give my regards to your wife.判断对 雨夹雪时,下雨下雪会很大吗?还是小雨小雪? That is what i am here for为什么不用why This is a email.You can send your friend an ( ) i do not have much time left 为什么用left Alice s________ an exciting movie last Sunday. 用所给单词的适当形式填空 1---Where _______(be)David last weekend?---He_____(be)on a farm,I think2---Whose present is this?Is it_____(you)?---No,it isn't._____(I)is here.3---Did you____(watch)the moon last Mid-Autumn Festival?---Yes,I____( is the right on temple the 连词成句 Do you want to discuss the matter with me at once?改为同义句 ___ ___ ___ ___ discuss the matter___ ___ ___ ___ discuss the matter with me at once? He is the best man__we can discuss the matter with.A.that B.which C.who D .with who 求歌,女声,好像是什么no matter coffee ,no matter tea… Look,the girls are talking and laughing h___ over there.