此题280有歧义。
its soundness is examined 不是他的可信性被证实了,而是可信性被推敲了
Moreover, chance events—which may indicate nothing about the direction of trends in population size—may lead to its extinction.
全文都是再讲decline和extinction的关系。
把P看作是L的作者 是一个假设,因为这个假设仅仅基于一篇15世纪早期的treatise,但是发现于15世纪晚期的一些treatises 支持了这个假设,然而这些treatises 不能作为证据,为什么?
第一段提出观点——两栖动物的decline标志着extinction
all but=几乎 about
错选A
is relation is complicated in intertidal dwellers such as commuter diatoms by the fact that these organisms are exposed to the solar-day cycle as well as to the tidal cycle 感觉是因为受阳光和潮两个因素影响 所以不会表现在特定的时间
感觉E 这样的情况是可能导致题目所述的平均数呈现这样的状态,因为都是=总加班时间/(月份*人数)?
文章 首先说的是 咖啡因简单地和受体结合导致的
A is to B what C is to do是一个习惯表达
other(s) = more in addition to the one(s) already mentioned;
Around 1900, fishermen in the Chesapeake Bay area landed more than seventeen million pounds of shad in a single year, but by 1920, overfishing and the proliferation of milldams and culverts that blocked shad from migrating up their spawning streams had reduced landings to less than four million pounds.
关于B,我的脑补是如果超过20件商品大于5%,那么说明低于20件的低于5%,甚至可能更便宜……
可以这么思考吗:减少xx顾客的数量 是目标的内容,因此用of
as much as 用于肯定表上限,not so much as用于否定。
只讲了关于对sulfur的过敏情况,与其他过敏原无关
DE: 作者并不想去解释这个现象,只是去反驳了depositor的结论,得出“overoptimistic”的结论
99^2 +1 = (99+1)^2-99*2 < 100^2