平方之后会变为正数。。。。。。

1/3的remainer是1

额....我真的服气了 -190到195，不是剩下5了，而是剩下五个数字！191.192.193.194.195...................

https://www.bilibili.com/video/av35420186 第五分钟
考察修饰位置（题型）
考察“long before it was fashionable to be an expatriate”在修饰谁，expatriate表示去国外定居的人，即“早在成为去国外定居的人很时髦之前”。这个明显是“人”的动作，修饰不了Paris。这个修饰词（modifier）要尽可能离Josephine Baker近；同时为了避免歧义，要尽可能离Pairs远

C的狀況不就是氣候變遷不是在end of the era才發生的，那之前發生的時候沒有滅絕，證明了氣候變遷不是滅絕的原因吧？為什麼不能weaken?

parallelism 谁跟克隆生物比

Aggregate demand is OKAY, it is specific demand that's not predictable baby

选的E，发现which只能指代storminess， 不能指代前面三个，所以错误

厉害了，这是来考中国学生的吧，能看得懂英文的都不会错。

ABC是一条直线，所以他是不能动的。。

被我的手算 差得哭瞎眼。

关于there be ron的回答：
there is nothing wrong with saying 'there is x'. this construction is basically equivalent to 'x exists' (if x is a thing), or 'x happens' (if x is an event).
the problem, though, is that "the intentional discarding of lens caps, packing material , fuel tanks and payload covers" IS the "littering".
so, sentences D and E are not logical.
because of' must be followed by SOMETHING ELSE that is actually the cause of something.
'with' should be followed by a component or part of the previous observation.
note that the correct answer is phrased in a way that removes this problem.
the correct answer says "orbits ... have become more and more littered". in this version, "littered" means roughly the same as 'dirty' or 'polluted'.

D的additonally修饰对象错误，Invest这个动作不是额外的（因为前面也有Invest这个相同动作），另外一笔钱才是额外的，所以修饰钱更好，E正确。

偷盗信息和卖数据之间不是有先后和因果关系吗，不偷怎么卖

只能选A，但A说实话也不好，consider A B才是最佳搭配

两个东西 一个是铁路一个是公路。

it is expected that ；
sb/sth is expected to do

GMAT Idoms