when did Ann's school vacation start神马意思

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• when did Ann's school vacation start神马意思
• 连词成句（第一个字母应大写）1：than/Peter is/john/taller/（ ）2：go to/ken/school/didn't/( )3:his uncle/yesterday/visited/tommy/( )4:last night/had/ann/a dream/( )5:fun/they/in/the museum/had/( )调兵遣将（选择what,where,when,who,how old 填空完成对话）1：A:（ ）is your birthday?B：is‘s January 12th.2:A:( )is mocky?B:he is four years old.3:A:( )won the race?B:( )peter won4:A:( )are they from?B:they are from china5:A:( )did you do?B:i cleaned the house
• 翻译一个句子并解释一下词组Not on your life .don't you remember that trip to Mount Hope----when I wound up in a cast for 2 mounth? 句子什么意思?里面 wound up 和 in a cast 什么意思?还有一句：Why did i ever agree to work on the school newspaper the same semester i'm taking five classes? that's some load. you've got your hands full, all right.那个能不能给好好回答啊？我是因为疑问才问的，不是来找乱七八糟的答案的。一楼的你也太糊弄人了吧
• when did Emma start to go to school是什么意思
• When did you start to speak english,that's really good for you!中文意思是什么?
• When did you start to speak english,that's really good for you!中文意思是什么?
• 〔〕1.What time did you reach school this morning?A.arrive B.get to C.come D.go to〔〕2.The man upstairs is sick.A.sleeping B.tired C.ill D.hungry〔〕3.The little girl didn’t come until we were ready to start.A.beforeB.afterC.when D.while〔〕4.What’s the matter with you,madam?A.mistake B.wrong C.trouble D.illness〔〕5.We got up too late this moring.So we missed the trainA.learned B.took C.lost D.got
• 如图所示，fi（x）（i=1，2，3，4）是定义在[0，1]上的四个函数，其中满足性质：“对[0，1]中任意的x1和x2，任意λ∈[0，1]，f[λx1+（1-λ）x2]≤λf（x1）+（1-λ）f（x2）恒成立”的只有_．
• 高一数学必修第一章复习参考题A组 已知函数f(x)=1+x2/1-x2,求证f(1/x)=-f(x)