是英文的.在离散数学的课本里.还有关于such that 的否是什么啊.1.There exist a,b and c such that (a*b)*c≠a*(b*c)
有没有there exist 这个句型记得高中时总用这个句型写作文,没错.可到了大学老师就要说是错的.这里的there exist 能不能相当于there be .说白了,就是exist能不能当系动词用.(不是倒装时候的情况
1.谓语动词的变化:由于"There exist"是一个固定的短语,谓语动词通常保持不变。例如: - There exist many different species of birds in this forest.(这个森林中存在许多不同种类的鸟类。) - There exists a solutionto this problem.(这个问题存在一个解决办法。) 2.子句中的主语变化:该短语后面的子句中,可...
1.There exist a,b and c such that (a*b)*c≠a*(b*c)2.For all integers a and b,there exist integers q and r such that b=qa+r3.if n is an integer,n/(n+1) is not an integer.注意第三个的答案不是n is an integer and n/(n+1) is an integer....
不过there exist在日常对话中很少用到。据www.textranch.com统计,there exist的出现频次只有there are的1/1500。 英语中exist这个单词比be出现晚得多。 Be源自古英语(1150年之前),往前追到原始日耳曼语。Exist源自法语,c.1600才进入英语,再往前则追到拉丁语。
There is going to be a rain. 要下雨了。 There's likely to be an interview.可能会有一场面试。 There has to be a mistake. 必定有错。 2. 在正式文体中,某些表示存在、发生、出现、坐落等意义的不及物动词也可以与there连用,如:appear, seem, come, remain, exist, live, stand, lie, arise, ...
nonempty sets A and B. It is easy to see that for any nonempty partition (A, B) of X ∪Y, there exist选择语言:从 到 翻译结果1翻译结果2 翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 非空子集A和B。很容易看到,对于任何非空分区X∪Y(A,B),存在 翻译结果2复制...
Assessment of relationship between acute ischemic stroke and heart disease--protocol of a prospective observational trial Stroke and acute myocardial infarction are the leading causes of death and disability in industrialized countries. Multiple interactions exist between the ... K Michal,S David,S Danie...
If a and b are relatively prime,then there exist integers m and n such that ma + nb = 1.大意就是假如a,b 互为素数,那么存在m,n使得ma + nb = 1 相关知识点: 试题来源: 解析 a,b 互素,也就是说 a,b 的最大公约数是1,即:(a,b) = 1.设集合 S 是由形如 ma + nb 的所有整数组成...
So there we were with Amy and she was driving us crazy... 就这样,我们和埃米到了一起,而她快把我们逼疯了。 柯林斯高阶英语词典 I looked, and there he was, riding a horse, with a double barreled shotgun on his shoulder. 我看了看,发现他在那儿,骑着马,肩上扛着一把双筒猎枪。 柯林斯高...