单位序列响应怎么求

夏天小明的爸爸出差到外地,回来时买了一盒保存温度为2~8℃的药物.如果保存温度超过8℃药品就会失 开卷是否有益辩论会作文300字!环景! 语文阅读方法如何有技巧地摘抄优美词句?如果只用一个本子去记,又有写景的又有些人的,显得杂乱无章；如果用几个本子去记,但一篇文章运用几种描写方法的,分本子去记有显得很麻烦,我该 姐妹俩今年年龄和是40岁,当姐姐像妹妹现在这样大时,妹妹的年龄恰好是姐姐的一半,则姐姐今年多少岁 姐妹俩今年的年龄和是35岁当姐姐像妹妹现在这样大时妹妹恰好是姐姐年龄的一半姐姐今年几岁要算式 姐妹俩今年的年龄和是40岁,当姐姐像妹妹现在这样大时,妹妹的年龄恰好是姐姐的一半,则姐姐今年多少岁? 哥哥和妹妹两人3年后的年龄和是30岁,妹妹今年年龄等于两人的年龄差,哥哥和妹妹今年各多少岁?求方程 哥哥和妹妹今年年龄的和是16岁,再过10年,妹妹的年龄是两人年龄之和的4/9,哥哥今年几岁,妹妹今年几岁 哥哥和妹妹今年的年龄和是22岁3年前哥哥比妹妹大4岁今年哥哥和妹妹各是多少 开卷是否有益辩论会作文400字 开卷是否有益辩论会作文350字 开卷是否有益辩论会作文450字 2007年4月18日全国铁路实施第六次大提速,提速干线时速达200公里小时铁路大提速将方便人们出行如宁波到武昌的距离为1100公里提速前列车的平均速度为80公里/小时提速成后运行时间缩短为9小 从大到小排词语：苹果树、果树、植物、树 哥哥和妹妹今年年龄 的和是 16,在过10年,妹妹是两个人年龄和的九分之四,哥哥今年几岁,妹妹今年哥哥和妹妹今年年龄的和是16,在过10年,妹妹是两个人年龄和的九分之四,哥哥今年几岁,妹妹今 2007年4月,全国铁路进行了第六次大提速,共改造约6000千米的提速线路,总投资约296亿元人民币.,问平均每千米提速线路的投资是多少亿元.(结果用科学记数法表示,保留三个有效数字） 陈述句变反问句的技巧有哪些? 英语翻译我确实有过回复她.How are you today?I am more than happy in your reply to my mail.Mine is a little bit cold over here in Dakar Senegal.My name is Jennifer koneh from Ivory Coast in West Africa,i am 23yrs old,5.3ft tall,fair in comp 英语翻译I want to use Butt- welding for carbon steel,stainless steel,Alloy steel.from 12"to 12".Elbow,Tee,Reducer.全文如上,求翻译, 一堆苹果3个3个数余下2个,5个5个数余下4个,7个7个数余1个,这堆苹果有多少个 各位大爷大妈大叔大娘大哥大姐小弟小妹都进来看看为什么人结过婚之后就会有宝宝?有人结婚好长时间都没?宝宝是怎么来的? 求英语小故事,口语比赛要用,火烧眉毛啊,各位大叔大妈大哥大姐小弟小妹们帮帮忙啊.答得好加高分的,要不短不长,有幽默感或有道理的或有警示意义的!要初中的同学能听懂的啊！“何必虚伪 请大爷大妈大叔大婶大哥大姐小弟小妹来帮帮忙,"潘多拉”具体是啥意思啊,是地名?有代表意义吗? 求此3题,求求各位大妈大婶大爷大娘大叔大哥大姐小弟小妹了!1.探空气象气球所载仪器及球壳总质量为2.0千克,球内所充氢气的密度为0.09千克每立方米,空气的密度为1.29千克每立方米,充满氢气 各位大爷大妈大叔大婶大哥大姐(如果有聪明地小妹小弟也可以)拜托帮帮忙啦一辆车从甲站到乙站,途中下了七分之二人,又上来2人,现在车上的人数比原来少了四分之一人,请问：现在车上还有 英语翻译Good day my dearest,I want to thank you for your reply to my email although we have not known each other before but I am very happy seeing your reply,how are you doing today.It is a pleasure to read from you and I believe age,color,distan 现在银行还扣利息税吗? 莫名其妙收到一封外国邮件阿鲁.I am miss Elizzy i came across your profile and i find out that you are the kind of person that suit my heart , if you are interested on me contact me back so that i will give you my picture , colour,distan 收到一封莫名其妙的英文邮件,收到一封南非发来的邮件：Attn:Sir/Madam.After my official enquiry from the foreign trade office of the chambers of commerce & industry here in Johannesburg South Africa,I decided to contact you but I 收到莫名其妙的邮件Update From Nation Wide BankDr.John ChenExecutive Director,Nation Wide Bank London,United Kingdom.This is to acknowledge the receipt of the information's your next of kin have provided to us and to re-confirm from you,if tr 英语翻译Brinng your wife We'll ffuck her!That's right we'll ffuck your wife!:)Click here-- Charity between them,surmounted by a crucifix,to see themall together again just as it was the beauty and chivalryof the south were there.They have come to 今天收到了一封来自国外的邮件,不知道是假的还是其他的什么 具体内容如下：Hi Dear.Thanks for your Immediate response to my e-mail, How are you doing today? hope fine and you are perfectly doing well in health. My name is