电子能级跃迁吸收光子

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英语一般过去时中,假如要表示某个时间点之后 用哪个介词?我知道将来时是用after过去时中after+一段时间,那时间点呢? Are you good with good,are,you,kids,with?连词成句..急.. Are you good with kids? Are you good___kids 中间选哪个?A:at:b:with c:for 86.He arrived in Shanghai in 2003,_____,some time later,he became a teacher.86.\x05He arrived in Shanghai in 2003,_____,some time later,he became a teacher.A.when \x05\x05\x05\x05B.where \x05\x05\x05\x05C.that \x05\x05\x05\x05D.which ()he goes to Shanghai by train.a.sometimes b.some time c.sometime d.some times 以及讲解.Why not ( ) your teacher.a.to ask b.ask c.asking d.asks 求讲解.Let's go to the mall to do some ( )(shop)适当形式.求讲解.His ( )(invite) pleased us.W Don't hurry There's a little time left . There will be_____ (little) leisure time this term than before.根据所给单词的适当形式填空. only one instance of the game can be running atone 英汉互译 1.把它捡起来 2.一位公园管理员 3.对他说 4.no one nearby 5.point to a sign I'm sorry for what I said 对what I said 提问 i a m sorry for what i said问哦什么是 what i said 而不是i said what ( B )30.I’m sorry for what I said.I .A.hold it back B.take it back C.keep it back D.get it back 翻译Dear:Thanks for staying with me all the time.And I love you. I'm sorry for what I said(句型转换)I'm sorry for ____ ____ My pen pal lives (in london) 对括号部分提问 Lucy,I am __(true)sorry about what I said.Lucy,I am ___________(true)sorry about what I said. ______ _______ John"s pen pal ______?He "S come from Korea. Are you __________ kids?为什么填good with where ___your pen pal____?---She lives Shanghai.A.does; live in B.does; lives in C.is; lives D.does; live急!今晚就要! I think she will be in for a hard time with the critics这句话怎么解释 i often stay up late to ()the exercisesAwriteBcompleteCworkDmake Would you like to go shopping t___with me? It's time for chinese class 同义句 要两句同义句,一句我已经做了It's time to have chinese class另一句是什么? be useful to do sth 与be useful in doing sth的区别最好带有例句. be useful to和be useful for的区别? do you like your work等于什么 Do you like your work?肯定回答 ( ),I(    ) do you --- your work.yes.i do.i like --- busy.A.do,to make B.finish,working C.keep,enjoy D.enjoy,to keep,马上要 I have a pen pal in japan,对I提问哪个对? I have a pen pal in Japan.是填空.对in Japan提问.____do you____a pen pal.