写这段的paraphraseThen the trickle of immigrants became a stream,and the population began to move westward—not to grab and leave but to settle and live,they thought.The newcomers were of peasant stock and they had their roots in a Europe where

写这段的paraphraseThen the trickle of immigrants became a stream,and the population began to move westward—not to grab and leave but to settle and live,they thought.The newcomers were of peasant stock and they had their roots in a Europe where lnx÷(t×t×t×t×t)的不定积分是多少 don't doesn't didn't won't hasn't haven't hadn't 的用法 报关里的M/T T/T t/(t^2-t+1)的积分 T/T指的是什么? 后T/T的英文翻译 t-1/t 的导数 求带T的英文名、T.T.T. isn't aren't don't doesn't的区别! 求函数T-T*T*T的单调性 求(3t*t+3)/(3t*t-4t)的值域（t大于0） didn't can't won't mostn't needn't weren't doesn't 的用法和意思 求(3t*t+3)/(3t*t-4t)的值域 求FZ／T、GB／T、GJB、HG／T、QB／T、SN、SN／T的全称. x=2t-t*t y=3t-t*3的拐点是什么? 已知有理数t满足|1-t|=1+|t|,求|t-2005|-|1-t|的值 am not,aren't,isn't,can't,don't,doesn't.的区别及用法.