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do you think it necessary for you to say thank you to your parents when they do something for you?and is it necessary for them to say thank you to you if you've done them a favor?what is your idea of a man of good manners? 编写程序计算并输出下面数列前十五项和,保留4位小数 1/（4*4）1/（7*7）1/（10*10） 编写程序,求下面数列前20项的和,结果保留2位小数.1,1/（1+2）,1/（1+2+3）,...1/(1+2+3+.+n). 编写程序：计算并输出下面数列的和,当第一次出现的和值能被11整除且小于-100时求和终止并输出结果.(1-1),(2-4),(3-9),…,(n-n*n),…(注意,n=1,2,3…) 计算机2级考题 知道的说下运算结果和程序 如果说男人有阳光美那么怎么相应的形容女人呢? 梦到女人光身子是什么意思?昨晚做梦,梦到在饭堂看到所有的女孩都是只穿一件睡衣,没有穿内裤.像光身子一样身体部位清晰可见. 怎么形容阳光 凌厉的阳光 为什么这样形容? 急需祝福家庭的词语. 求赏析下面这个句子.字多点~谢谢爱心是冬日的一片阳光,使用饥寒交迫的人感受到人间的温暖；爱心是沙漠中的一泓清泉,使用权濒临绝境的人重新看到生活的希望；爱心是洒在久旱大地上的 “生命比一切更重要”品析这句话200字 山中访友品词析句 帮帮我吧：有关于“品”字的诗句都有那些啊?谢谢 谢谢 A true friend is always around with you It _____that a true friend is a person whom you can trust.A believe B believes C is believedD believed 商务英语翻译 I am going to issue a credit for the amount you were charged. 英语翻译如题!Mr.Robert Lynd once remarked of Jane Austen’s characters:‘They are people in whose lives a slight fall of snow is an event.’ Even at the risk of appearing to this witty and genial critic as another Mr.Woodhouse,I must insist 英语翻译My Favourite FestivalChina has a lot of festivals.My favourite festival is the spring festival.Because the spring festival is the beginning of a year.And the new year's Eve we can try our best to play.Do you like playing?I think everybody 英语翻译way coiled cord samples was m=not per print ,pls have SH make 6 more sample to send asap and must be per printconfirm when can be shipped 初中新目标九年级单词表 新目标九年级上册单词表 急需新目标unit9九年级上单词表! i feel tired and i want to sleep you should work hard to improve your english 根据句意及首字母提示完成句子：If you want to i _____your English,you must work harder I want to learning English for work hard.有没有语法错误? 汽车甲、乙从相距420千米的A、B两地同时出发相对而行,甲车的速度是每小时64千米,谢谢 新目标九年级英语单词读音的mp3.只要单词的! 写一篇预测20年自己生活的英语作文((100词) “为敌友”英文发音,磁带里的,是什么单词? It's very i_____ to work hard.I want to learn another l_____.I want to go aboard. We’d better _____(work）hard because it’s hard _____（fine）in wiater is very hard. 设f(x)在[a,b]上连续,在(a,b)内可导(0