为什么有的配合离子中配位数为4，但是结构不是四面体而是平面平面四边形

用英文翻译上周末我弹钢琴. Mnm is five times as old as my sister.How old is mum now?Mum is five times as old as my sister.In 15 years mun will be twice as old as my sister How old is mum now? 能不能清楚的告诉我,三角函数tan究竟是什么边比什么边,请不要太复杂,还有三角函数仅仅只限于RT△吗? fair怎么读 赵州桥为何被誉为“华北四宝”之一呢? what does virtual representation mean (请用英语回答) matlab的问题?Index exceeds matrix dimensions.for m=1:ND% 分别沿两个方向计算if(anglemu(m)0)Sca=Sca+abs(anglemu(k))*Ipold(Nr+1,:,:,k)*weight(k);endendIpold(Nr+1,:,:,m)=ewallc*T(Nr+1,:,:).^4+1/pi*(1-ewallb)*Sca;endif(anglexi(m)>0) % z方向S matlab Index exceeds matrix dimensions.子函数：function [MminT] =MminT(M,H,r,i)syms x;y=(x-i(M)).*(x-i(M+1))./((i(M-1)-i(M)).*(i(M-1)-i(M+1))).*r(M-1,H)+(x-i(M-1)).*(x-i(M+1))./((i(M)-i(M-1)).*(i(M)-i(M+1))).*r(M,H)+(x-i(M-1)).*(x-i(M))./((i(M+1) Matlab计算Index exceeds matrix dimensions.为什么?... is的汉语意思是什么? This is for you,zip.此句话中zip是人名,翻译为中文应该怎么说呢? your mum怎么读 is的中文是什么 ay结尾的单词10个 matlab中Index exceeds matrix dimensionsclear; close all; clc;load data0.matx=b(:,1);y=b(:,2);n1=17; %中值滤波窗口n2=15;y1 =[y;y(1:n1)];[m,n] = size(y);out =[];s = [];for i=1:m*ns=sort(y1(i:i+n1-1));out(i)=mean(s(i+1:i+n1-2));endy2=out;subplot( the,in,is,he,counting,woods,insects(?) insects,is,counting,he(?)连词成句 counting lily insects there is .连词成句 第一是帮我看看结构,语法,词汇运用有什么大的问题,之前有个人说我文章逗号运用过多,导致考官会无法明白我说什么?第二是给我建议,让我知道怎么提高Nowadays,it has a research,which tells an opinion Some people think students should learn more practical courses like computer,but others think they should learn more about theoretical courses like geography and mathematics.Discuss both views and give your opinion.Today,what type of courses should s Students from poor backgound such as rural areas ofen find it difficult to access to university education,so people think universities should make it easy for them to study at.To what extent do you agerr or disagree?It is always a huga challenge for p（ai）nt和pl（ay）的发音相同吗? 请求高手帮忙批改雅思作文.A rise in the world’s population is having serious,negative effects on the environment.Some scientists believe that the only way to solve the problem is to set up a colony on the Moon.Others argue that the cost if only引导句子的时态问题 What does "run a high temperature" mean in English? “hat,say,wait,glad,train,bag,at,today,rain,may”和play”发音相同的有 say today wait 他们怎么发音? 欣这个名字帮忙想个英文名? 起英文名,女,中文名叫欣雨不希望叫Cindy,最好和名字相关或常见的 以ai发音结尾的单词,ei,ang,an发音结尾的单词,每个不少于十个,越多越好 结尾是"ai"的词语例如：等待离开悲哀告白 什么的再给我说几个哈 单词ai结尾的有那些