“遂大通六经之旨,慨然有志于天下”是什么意思

最近，妈妈变得越来越唠叨了，我穿什么衣服、看什么书、和什么人交朋友，她都要说上一大通。面对妈妈的唠叨，我该

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A．她说她的，我做我的 B．找个机会谈一谈，或者用行动 C．认为妈妈唠叨真烦人 D．和妈妈理论，最后吵起来

大学物理写实验预习报告,书上实验原理说了一大通,该怎么取舍其中内容,使表达简明扼要啊!
同时,实验原理中还有繁杂的公式推导,该怎么取舍?

拜托英语达人,实在搞不懂这老外的意思,絮絮叨叨一大通,到底啥意思?看得云里雾里啊!
I "won" three of your "auctions," three pair of underwear.Obviously
these take up little space.As someone who has done quite a bit of
shipping/auction,and intend to do more,I know you could easily send
these three items together.Smash 'em up.Wrinkles hardly matter :)
lol Hope you would you be okay with this.At $6.95/piece that would
come to $20.85.If you are shipping them in box/envelope (a priority
mailer would be less than four dollars and the light weight would allow
for this).Actually,if they are sent in the same box/envelope,
legally my charge should be $6.95,as this is what you claim the
shipping to cost.I'm probably embarrassing myself.You probably
already know this given your high rating.I like to empower people with
knowledge--helps their sales,and saves me money
,which keeps ME coming back!:) :) :) This,of course,is a
(supposed) "savings" of $13.90.Again,I've been through this before,I
learned as a seller.How shall we do this?I want to do this legally
and ASAP!TY,Shari
接着又说：
Knowing the laws and all,I have a deal for you,and me.What would
you say to a gin price of 50,$10.00 to combine ship entire order,which
would save you $26.85,making almost $30--remembering,you would have
to ship each separately otherwise.
:) Shari

范仲淹二岁而孤 既长,知其世家,感泣.辞母去之南都,入学舍 遂大通六经之[旨] 日昃始[食]
什么意思?[]中字的意思 急!
既长,知其世家,感泣.辞母去之南都,入学舍的意思

大通商城服装部销售一批名牌衬衫,平均每天可售出30件,每件盈利50元,为了扩大销售,增加盈利,服装部决定采用适当的降价,经调查发现,每件衬衫没降价10元,平均每天可多售出15件,诺服装部每天要求盈利1800元,请问每件衬衫应降价多少元?