这道题的关键在于读懂题目，If k is a positive integer and the tens digit of k + 5 is 4, what is the tens digit... 给的是k+5的值的 tens digit是4...

第12题：
and so, 这里的so 是副词不是连词么？

There are several reasons to eliminate A and choose B.

so X as to Y implies that Y SEEMS TO BE TRUE.
Official examples:
Climatic shifts are so gradual as to be indistinguishable from ordinary fluctuations in the weather.
The features of the idealized sculpture portrait are so unrealistic as to constitute what one scholar calls an "artificial face."
In each case, the blue portion is something that SEEMS TO BE TRUE about the preceding subject in red.

so X that Y implies that Y ACTUALLY HAPPENS.
An official example:
Everyday life is so brisk that it hampers the ability of some children to distinguishing discrete sounds.
Here, the blue portion is something that ACTUALLY HAPPENS -- an action that is actually performed by the preceding subject in red.

A key difference between the two idioms:
Whereas in the second idiom Y can serve to express an actual action, in the first idiom it cannot.
In the first idiom, Y must serve to express not an actual action but merely something that SEEMS TO BE TRUE about the preceding subject.

A: so saturated with water as to acquire a liquid's character
Here, so X as to Y incorrectly serves to express the action in red.
As noted above, Y in this idiom must serve to express not an actual action but merely something that seems to be true about the preceding subject.

Moreover, the usage of so X as to Y implies that the portion in red does not actually happen.
Not the intended meaning.
A person can DROWN in quicksand.
Thus, quicksand actually DOES acquire the character of a liquid.
To express this meaning, we should use so X that Y, as in the OA:
"Quicksand"...is so saturated with water that it acquires the character of a liquid.

Another issue:

A dog's eyes can reveal much about its temperament.
Here, the phrase in blue implies that every dog has UNIQUE eyes -- eyes that can reveal much about the dog's temperament.

A: a liquid's character
This phrase seems to imply that every liquid has a UNIQUE character.
Not the intended meaning.
The intention here is to discuss the general nature of any given liquid.
The OA correctly expresses this meaning:
"Quicksand"... is so saturated with water that it acquires the character of a liquid.
Here, THE CHARACTER of a liquid = the general nature of any given liquid.

For all these reasons, eliminate A.

真的没有人错这道题吗嘤嘤嘤嘤嘤嘤嘤嘤嘤😭

BCD还没提到，排除；AD明显选D

profit=revenue+cost

（2）假设t=7k+m，发现m=1和6都能使t^2除以7余1，所以并不能确定m等于多少（当时忽视了m=6）

【转载】(1)d+1是偶的时候，c可奇可偶，不能确定，NS
(2)d+4是偶的时候，c+2可奇可偶，则c可奇可偶，不能确定，NS
(1)+(2): 当d+1是奇的时候，条件1说明c得是偶数，同时满足条件2；当d+1是偶的时候，d就是奇数，所以d+4也是奇数，要想满足条件2，所以c+2得是偶数，说明c得是偶数。因此能确定c一定是偶数，S。

E选项的解释不太认同。为什么the ones 不能指代主语Tides？the tides at the Bay of Fundy 是符合逻辑的。

倒装句，看了答案才明白

前提：然而，补助不会增加超过在没有被雇佣所得到的政府救济，换句人话就是补助不会多于政府救济。
结论：失业的人没有财务刺激来去申请补助。

预判： 1. 补助不会超过救济，会不会工作后工资会逐步增加，这样一来，工资加补助就会更多，从而更多人去申请补助。
2. 是不是财务刺激只是 补助这部分，如果财务刺激的来源还有找到工作后的收入。
3. 是不是还有找到工作后免税的财务刺激等。

看选项：

A.政府不收失业人资助的税，这个选项加强了结论，这样一来，失业的人更倾向拿失业救济，排出
B.隔壁国家修改了最低工资后失业率更高了，这里并没有说是增加了最低工资还是减低了最低工资
C.找到工作的人比失业的人收入更多，符合预判内容，保留
D. 失业的人得到的政府救济要比政府定义的贫困水平要的收入要少，这里提出了新的信息贫困水平的收入，救济的多少和政府补助没有关系。排出
E. 享受工作所以有时接受收入较少的工作， 无关选项。排出。

所以最优选应该是C

5000年的流星雨穿过要一天多，3000年的流星雨穿过19小时，这是客观事实，不是争议点，争议的地方是到底是流星管子中间密度大还是两边密度大，所以两个是都同意的。唉。。。。。5000年的风风雨雨藏聊多少痛。。。

arc弧度

B错在experience，与comparable worth有关的不是工作经历，而是目前这个人所在的岗位客观需要的skills, training, and job responsibilities

general population lacks the specialized knowledge to evaluate such advertisements and might ask their physicians for inappropriate medications. 此处一个assumption应该是，人们就算看到药品广告也不能自己买，而必须通过医生来开药。在这一假设下B是无关的。

注意C是说支持第二段the position taken in the first sentence ，而不是支持第二段的全部内容，第三张实际上是对第二段的一个扩充，打破了第二段女性的工作没有超出household的这一假设

算到最后可以代答案进去，这样快一点

CE都是事实，都不是双方disagree的，真正disagree的是被否决背后的原因（是否是arbitrary）

看平行，前面是 In Hungary, 后面用as 之类的 也应该是类似的。初筛AC；
A，many of which are in，which 只能是指代物，不能是人，排除。

这个as much community centered as要怎么翻译啊？