制定规范的目的和意义

求大神解释下[天下五雷通]是神马意思 （2）现有类M和类N,以下描述中表示N继承自M的语句是（ ） A．class M extends N B．class N implements M选A? 用vb 求π Private Sub Form_Click()Dim i As Long,pi As Double,k As Integer,m As Doublei = 1k = 1pi = 0m = 1While (m > 0.00001)m = 1 / (2 * i - 1)pi = pi + k * mi = i + 1k = -kWendPrint "π "; 4 * piEnd SubPrivate Sub Form_Click()Dim pi,c,s As Single vc中MFC Class,Generic Class,Form Class分别代表怎么样的类?能不能再详细一点. I have to do my homework at home.（改为一般疑问句） My brother usually have breakfast at home哪里错了 I have to ( )my home .my mother asked me to go back at once A.leave B Leave forC leaves D leave to this is a 我在六人行里面看到的这句话this is a cube 笔记里面解释是 这才像话嘛cube是立方体的意思 Your brother often disagrees with you,____he?____.We have different opinions.a does yesb does no c doesn‘t yes d doesn’t no 选什么呀,请给出解析. 改错 you never have hamburgers .no,l often have them 第三次信息技术革命的主要内容. 与信息技术有关的法律法规有哪些,具体内容 信息技术内容高一上期信息技术的第一章第3节是啥? be careful!you ____ always ________(make) the same mistake.如题 are making.为什么要用 现在进行时. 信息技术比赛内容请问现在的信息技术比赛比的是社么啊?有例子不? If you c() yo make the same mistake,the teacher will be angry 英语翻译昨天是冬至,这是一年中夜晚最长,白天最短,中国人喜欢在这一天吃水饺的习俗,你喜欢吃那种馅的水饺?我喜欢吃肉馅/肉菜馅/肉三鲜/鲅鱼等等,我喜欢喝白酒/红酒/芒果/草莓/梨/苹果/ 英语翻译你昨天晚上怎莫没有上课?因为我出差了/同学聚会/左天加班/昨天感觉很累所以没有去上课.我认为你几乎是不缺课的!谢谢你的赞扬.但我不是铁人/不是超人.我明白!Mrs Wan 打算叫我们 英语翻译中式快餐,洋快餐,你们当地有哪些特色菜?比如博山酥锅,周村烧饼等,我就知道这些,有什莫特色酒,有黄河龙,扳倒井,百粮春是我们当地比较爱喝的白酒!我们这里还有陶瓷,号称江北瓷 一道英语选择题---（）my glasses?---yes,i saw them on yourbed a minute ago.A Do you seeB Had you seenC Would you seeD Have you see选第四个,为什么呐 ---------my glasses?Yes,I saw them on your desk minute.a.do you see b.have you seen c.had you seen. ----_______my glasses?----Yes,I saw them on your bed a moment ago.A.Do you seeB.Had you seenC.Would you seeD.Have you seen a href= # -my glasses I can't read without them .I -them on your bed ,but such a class act 求教：a class act 如：The club is lucky to have such a class act and Jimmy is lucky to have the club.class act class 和 act 在这个词组里分别是什么意思? 信息技术带来的好处越多越好! I have to(look after) my grandma at home.用括号中单词的正确形式填空The doctor arrived (in time ) and saved him.同上 和朋友谈论将来的工作 英语翻译 Do you need a pair of shoes?Yes,I want A.oneB.itC.them12.05之前给答案 "Yes,I____it ten minutes ago." a.have b.had c.mended d.have mended为什么 一Have you mended your shoes,Bob?一Yes,I______them twenty minutes ago.A.have mended B.mend C.had mended D,mended Are you going to put on your shoes? Yes ,I am going to put them on.看历句Is he going to take off his tie? （ ）Are you going to turn on the radio? ( )IS she going to turn off the tap? (