化学在中国的发展

什么时候do you know可以用I didn't know回答为什么前面是一般现在时，后面是一般过去式 孟得尔碗豆杂交实验中,若n代表非同源染色体上等位基因对数,则2^n能表示什么 I didn't know you ______ill. 下表是分析豌豆的两对基因遗传情况所得到的F2基因型结果（非等位基因位于非同源染色体上）.表中列出部分基因型,有的以数字表示,下列叙述不正确的是A.基因型XyRr在F2中出现的比例是9／16 In Case You Didn'T Know 歌词 i didn't even fucking know youEVEN在这里是加强语气 但是怎么用阿? it was announced that only when the fire was under control ( )to return their homes.这道题我没看懂您的解释,可以再细点说说吗 It was announced that only when the fire was under control ___ to return to their homes.A.the residents would be permitted B.had the residents been permitted C.would be residents be permitted D.the residents had been permitted so many college students work after class get money for their studies It was announced that only when the terrible disease was under control___to return to their homeswould the residents decide倒装知道,但为什么不用 be decided 而是用 decide So many college students work after class to get the money for their studiesafter class 下课,哪些是词组.怎么理解句子成份.中文我知道.哪几个词比较重要.什么词性.这些. 填什么?：So many college students work after class to get money for their （study).填什么?为什么? So many college student work______calss to get the money for their______ Why do many college students work after class? I am an old dog Mr Green is my father.I,m his s() i am who lucky dog is.我是个幸运儿,这个语法有问题没 His father is Jackie Brown?改陈述句 I am＝I'm He is＝He's she is＝she‘s good dog＝?帮我使劲想!想出来就发!ps：正常思维想不出的 在孟德尔豌豆杂交实验中,若n代表研究的非同源染色体上等位基因对数,则2的n次方能代表?1.F1形成配子的类型数.2.F1自交产生F2时雌雄配子的组合数.3.F2的基因型种类数.4.F2的表现型种类数.A.2.B. 夸张句补充 今天真冷,冷得_________.这里的景色真美,美得__________. d和d不是等位基因,那是不是非等位基因呢,它们在染色体的什么位置还有,如何用染色体解释孟德尔的杂交实 维也纳的景色真美啊!_______________________________(把句子补充完整)【这个很急,】写一个描写战争的句子,用上“惊心动魄”这个词语_______________________________________维也纳的景色真美啊!_______________ 天目湖的景色真美啊,用夸张的手法把句子写具体 高手翻译there was so much I didn't know and I didn't even know it there were so many computers there that i didn not how to choose a right one如何翻译 用somebody(someone) anybody(anyone) everybody(everyone) nobody 1.I didn't know ____ there.2.She is friendly to ____.We all like to make friends with her.3.Did ____ ever hear of such a thing? What time ____ the bus ____ ____ to work He ____to ____ ____ our school College entrance examination后面加the么 Rules for the University Entrance ExaminationRules for the University Entrance Examination ●You mu.What kind of examination are these rules probably for?A.A local exam.B.A final exam.C.A college exam.D.A national exam.2.What are you allowed to have college entrance examinations 和college entrance examination单复数有什么区别,为什么有些地方用复数 ---I have passed the college entrance examination. ---( ).A.Good luck! B.Congratulations!C.With pleasure D.Best wishes