中国和日本军事对比

有一电阻为20Ω的电灯,在正常工作时它两端的电压为9V.但是我们手边现有的电源电压是12V,要把电灯接在这个电源上,需要给它串联一个多大的电阻? 根据上下文补全对话A：1.———————?B：I have got a headache.A：2——————?B：I'm feeling badly ill.A：Let me see..Oh,it's a just cold.3._____.B:Really?But I don't feel any better now.A:4.______?B :No,I didn't want to 如果R1和R2并联后在与R3并联电阻怎么算是不是先算R1并R2的R,在算R3并R的?那如果是R2并上R3之后在并上R1呢,和不和上面的等效? He went to bed ____and when he woke up,he found he still had his shoes on A drinking B to drinkC drink Dbeing drunk 为什么选C david found )animals on the hill when he went to fiy kites. Do you know what look good on you怎么翻译 on National day,there are many people in shaoxing（）vacationA.in B.at C.of D.for There __in the national contestA.is some beauty B.are some beauties C.are some beauty D.is much beauty求详解 give out the team awards是什么意思 找错：She has a pair of beautiful big eyes on her face. yu 汩怎么组词 英语根据上下文完成对话,hello hello T__________is tim.may it ___________to sue please?ok,l'II g_______her.H________on,piease.Hello,this is sue s_________sue,this is tim I'M g______ to v_________ you this saturday.great!what are you d______n 用说（yuè）组词 yu的组词 请问怎样才能快速提升英语的口语能力呢?是要先从词汇开始背诵么? "Here are some American classrome customs:.阅读理解 contented和content有什么简单的区别,哪个是satisfied的近义词 content 是什么 英语短文改错：开头是There is public in every town in Britain.结尾是cook and gardening are also p...英语短文改错：开头是There is public in every town in Britain.结尾是cook and gardening are also popular. 改错：There is a public library in every town in Britain.Anyonecan borrow books if he or she wish. What s---does she play怎么填空 第一句 改错there is a public library in Britain .这是安徽省什么时候高考题 连词成句evidence ,we ,until ,will ,find ,give ,not ,convincing ,we ,up after ten years ,she changed a lot and look different from what he used to be是什么从句为什么不能用that引导呢? are generally content.中content 是什么词性? 语法选择 a different person from( ) she used to bewhatwhomthatwho选哪个?为什么? After ten years she changed a lot and look different from--- he used to be.A that b whom c what d who west和western都有形容词的意思,请说一下区别． 与像意思相同的词 west和western有什么区别?如果要表达西方发达国家或西方人的意思,用哪一个好?两个能不能通用? west和western之间的区别是什么啊?都有形容词的词性啊 western 和west 的区别举例说明