线粒体的分离与观察

To go to 是不是等于Go to shool? He's "friendly" and and "helpful".（对引号部分提问）（ ）is he（ 请帮忙翻译下:the desk of the promotions manager 翻译：If consumers consider the quality of the insurance plans as well as the message in the ads,they will benefit from the advertising. After You Left 歌词 清末中国和日本都签定了哪些不平等条约 You can also see Big Ben.Big Ben is a clock I have to go to the station early,变为否定句. I think I'll have to go up again改为否定句 请以How I Kill My Spare Time 为题写一篇作文 the speech must be very exciting.the student are c____ their hands once again.have been to 与have gone to 的区别Miss Li taught math at his school ______(in/on/from/since)July ,1992last summer ,we had a fantastic time _____(sail) in Qingdaohe ____ while in some developing countries.为啥用while呀,咋看咋多余 neither of us are a teacher改错 并说明为什么 run with Can you help me with ----------(run)? 写出下句的同义句:Big Ben is the world famous clock tower . Big Ben is an old and huge clock.It is famous interesting place of London.用同样的方法写(下）Tower BridgeWashington D.CDisneyland Pingyu heard the famous sound of the clock Big Ben,ringing out the hour.ringing out the hour在句中做什么成分 All the students know_______(hand)in homework on time is necessary.答案说填handing,是动名词作主语,这里可以填to hand吗?为什么?不定式不是也可以作主语么? big book it is 修改病句I love sweets.but I don't eat it any more. The population of the ----countries is growing faster than that of the -----countries ,is not it?Yes,it isA.developed ,less develop B.developed ,developingC.developing,.developed为什么? 英语大神请进.We () for a picnic if it () tomorrow.We _______ for a picnic if it _______ tomorrow.A.don't go / rains B.won't go / will rainC.won't go / rains D.don't go / will rain （ ）a fine day ,we decided to go out for a picnic.A Having been B Being C What D It being 选哪个? 把狼的基因打在人身上,有可能变成狼人吗? 话说有一天一人到森林里去,听见了狼叫,——————————————————最后狼死了,狼身上有牙印 uW是什么单位符号 our team performed very well in the game.为什么要用well为什么要用well?我听老师说是要用副词所以不用good,不是很懂, the game was not going well为什么不可以是good?我把good翻译成“变得……”就可以加形容词了呀.这场游戏开始变得不乐观了.希望懂我的意思.就像有taste attractive,feel lone一样 It’s reported that population in the developing countries has risen more than twice as has done the case in the developed countries中的 has done 这里是固定用法吗? The population of the ____ countries is ___ as ___ as___ of the ____ countries.发展中国家的人口是发达国家人口的两倍多. 怎样获得一个人的DNA如果一个人咬了一口饼干,那么这块饼干可以验出这个人的DNA么?