Sally’s never seen a play in the Shanghai Grand Theatre, ______?A. hasn’t sheB. has sh
Sally’s never seen a play in the Shanghai Grand Theatre, ______?
A. hasn’t she B. has she C. isn’t she D. is she
so 和such的区别中,有一个many much little few修饰名词用so.但是lit 英语 2020-04-06 …
可以参考的公式是：s[1]=a[1];s[n]=s[n-1]>=0?s[n-1]+a[n]:a[n 其他 2020-05-14 …
she was a bit nervous as she __her boy friend's p 英语 2020-05-16 …
Did you enjoy yourself at the party?Yes,I have ne 英语 2020-05-16 …
A:He has already gone back to australia,______ ? 英语 2020-05-16 …
比较级和最高级he never felt____ desire to read his son"s 英语 2020-05-17 …
单项选择：Your story is perfect ,I've never heard () b 英语 2020-05-17 …
I never believe a word he ;I have never heard him 英语 2020-05-17 …
求函数的拉氏反变换：X（s）=(s+2)/[s·（s+1）^2·（s+3）]我的解法如下：X(s) 数学 2020-05-22 …
令S（a）代表a的数字和，如果两个数a、b满足S（a）+S（b）≠S（a+b），但S（a）×S（b） 数学 2021-01-09 …