帮忙做下几道英文单选1． Sir Denis,who is 78,has made it known that much of his collection ______ to the nation.A) has left B) is to leave C) leaves D) is to be left2.Until then,his family _______ from him for six months.A) didn’t hear B)

帮忙做下几道英文单选1． Sir Denis,who is 78,has made it known that much of his collection ______ to the nation.A) has left B) is to leave C) leaves D) is to be left2.Until then,his family _______ from him for six months.A) didn’t hear B) 初一英语单选1~6求帮忙 初一英语单选1-5求帮忙 初一英语单选1-10求帮忙 MATLAB中den(1)到底是矩阵还是函数?做单回声滤波器是我时候,不知道den()和num()到底是函数还是矩阵,着急 feedback(num,den,1, 初一英语单选1-5求帮忙啊 单选1-3英语好的帮忙看谢谢! 初二英语单选1-5求帮忙 matlab求教!num=136den=[3.75*10^-6 7.5*10^-3 1 0]sys=tf(num,den)bode(sys)num=1360den=[3.75*10^-6 7.5*10^-3 1 136]sys=tf(num,den)bode(sys)这是两个传递函数的波特图 我现在想把这两个波特图弄到一张图上去 求大侠帮忙解 初一英语单选47-51求帮忙 英语单选8-13求帮忙 急 英文询问信 帮忙检查一下有没有语法错误 Dear madam or sir:Thank you for your time to read my lett 请帮忙翻译yes,sir.i want to sleep. 英文邀请函中,Dear sir/madam是不对吗?非得用Dear Madam/sir才是国际惯例? 单选:A:Waiter!B:( ) A:What's in the soup?A fly!A.Yes,sir?B.What?c.All right?D.Pardon? 帮忙修改一下以下英文求职信,Dear Madame or Sir,Thanks for giving me a chance to show myself!I was graduated from XX University and major in Foreign Language and Literature．My dream was to become a teacher when I was young,so I have been 单证英文好的同学请帮忙!万谢,这票货是箱装的,没有干燥剂