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问个简单英语语法百度？ 两向量组向量个数相同 ,且都线性无关 ,且一个可由另一个表出,那么这两个向量等价吗? 两个向量组等价,则这两个向量线性无关吗必须是两个向量组个数相等的时候两个向量组等价才能都线性无关吗，换句话说就是两个向量组等价是不是就暗示这两个向量组所含向量个数相同呢 matlab中diag取出对角元素之后生成的一定是列向量吗 matlab中 diag(1 ./ 简单英语语法提问1.the number of the books in our library is larger than_____the books in yours.A.that of B.those of C.one D.ones2.Sally as well as some other students _____always ready to help others.A.is B.was C.are D.were 数学题回答(请看问题补充说明)一个高20厘米的杯子里盛满水,放进2个棱长是2厘米的铁块,杯子里溢出一部分水,拿出铁块后,水面降低了1厘米.这个杯子的容积是多少? 设int a=37;,则执行语句a+=a%=9;后,变量a的值是 如果不是请仔细说明! 135.设有语句int a =3;,则执行了语句a+=a—=a*a；后,变量a的值是 ( ) A． 3 B． 0 C． 9 D．-12请帮我选出正确答案~~谢谢~ 12、 设有语句int a=3; 则执行了语句a-=a+=a*a;后,变量a的值是（ ）.A）3 B）0 C）-12 D）24 He was about to stop the match when th 1、He fans are excited about the results of the exciting (f ) match.2、He was lying in the sun looking very (r ) and happy in the relaxing afternoon.3、He had to (f ) the scene four times before he got it right on film.5、We are taking a _____(st 设向量组α1α2α3线性相关,向量组α2α3α4线性无关,问：α4能否由α1α2α3线性表示 he felt guilty about losing.and bad about not being as gifted at football as you are 翻译成中文 什么数能被2和3共同整除?记住是和不是或! 3（ ）,当括号里数是（ ）数时,就能被2整除；75（ ）,当括号里数是（ ）时,这个数就是九的倍数. 问一个很简单的英语语法问题The cat( I was catched )was very beautiful.括号部分是定语从句吗?到底是什么为什么不能是The cat I catched was very beautiful.为什么有老师说第一句对 设函数f(x)在R内有定义,且f(0)=0,f'(0)=1,f(x1+x2)=f(x1)φ(x2)+f(x2)φ(x1)其中...设函数f(x)在R内有定义,且f(0)=0,f'(0)=1,f(x1+x2)=f(x1)φ(x2)+f(x2)φ(x1)其中φ(x)=cosx+(x^2)*e^(-2x),求f'(x) 有关追求的作文 作文 追求 由一组线性无关的向量表示的向量之间是否线性无关? 关于提高科技素质的作文 matlab中怎样随机产生30个数,并将其放入5*6的矩阵中 matlab中,我有矩阵a=[7 6 5 4 4 0 1],怎么把它倒过来变成 b=[1 0 4 4 5 6 7] Our team won the football match in the end. 科学技术与理论有内在的共同目标? 如何科学确定组织的目标? 现在说这个问题可能有点晚了,但还是想寻求点希望,是有关科技保研的.现介绍我的条件如下：本人大四,发表国际论文（Ei&ISTP双检索）两篇,一篇一作一篇四作,另有Ei检索一作一篇；两项实用 on monday and wednesday afternoons then practice for an hour and a half We are (watch)the basketball team practice I'm (go)to play soccer in the afternoonSusan and I often practice (play)the piano.We are (win)the football contest.They are (cheer)for their classmates on a sports day.They need to (practice)nowShe needs ( g the team ------（practice）basketball every afternoon.team作为集合名词 ,在这里看作一个队整体 用单三还是看作队员们用复数? 写出下列句子的同义句.They have to practice basketball from Monday to Friday.They have to practice basketball from Monday to Friday.They have to practice basketball ( ) Friday.注意一空一词