错选C，没看完E 选项。

错选D （没看懂选项） calls into question：质疑

错选D，（没有理解题目意思）

r如果小于0，移项到右边会改变不等号的方向，所以A不对；

1. 180-三角形的某个角=另外两个角的和

1. n=0时，2^0/3=0......1，所以I不成立
2. II成立的前提下，III必定成立

代词it的指代对象只能是名词而不能是一个句子或动词

1. 质因数分解；2. 最小公倍数是每个质数的最高次方的乘积

作者没有观点，所以c不对

你肯定把题目看反了

语法点：倍数的表达 xxx times as much as，排除选项1，3，5.

A now costs eight times as much to do as it (=A) did in 1960.

莫名其妙关注在了逗号上而排除了正确选项！！！查了一下这也是个语法点。
“當 and 連接的是兩個句子時 (後面的句子也有自己的主詞), and 前面必須加逗點。即使後面句子的主詞和前面句子的主詞是同樣的人或物。只要後面句子有自己的主詞, 就該在 and 前加逗點。“

语法点：倍数的表达。
1. A has four times the strength of B. - 选项1正确。
2. A has four times as much strength as B (has). - 选项2&3表达都有误。

通过Incorporating补足语可以快速排除选项4&5。

考点：
1. 指代词, they vs. such avalanches。用they除了指代不明之外，更主要是错误的。道理跟"人不能两次踏进同一条河流"一样。开头的avalanches已经发生了，是不可能在现在又被控制且预防将来发生，只能是还未出现的、类似规模的新avalanches才可能被控制/预防。如果用they，指代的就是当年发生的雪崩。而如果用such avalanches则表示的是新的、同等性质的雪崩。
2. 时态。between 1885 and 1910是一个过去的时间段，用过去时。

感觉文章很简单。。选项也容易读懂。。但就是错的一塌糊涂

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

In this choice, the referent of the pronoun they is unclear. Furthermore,
the phrase as opposed to private is misplaced; it would be correct if placed
immediately before realm.
C. In this choice, the plural phrase not private ones refers to the singular a
public realm.

C. In this choice, the plural phrase not private ones refers to the singular a
public realm.
D. Correct. This choice avoids using a pronoun with no clear referent and
correctly expresses the comparison between a public realm, as opposed to
a private one, where both noun phrases are singular.
E. This choice uses opposite of a private one to refer to a public realm,
unreasonably suggesting that a public realm cannot coexist with a private
realm.

考点：
1. as much/many + noun + as + 比较对象。
（1）A is as much B as C. 这里跟 A is B as much as A is C是一样的意思。as much表示程度，因此不能用many。
It is as much your faulty as your wife's. 既是你的过错，也是你妻子的过错。
Henry is as much hypocrite as John. H和J一样是个伪君子。
（2）再来一个应该用many的例句。
Mary has written as many essays as her brother. 玛丽写的文章篇数和她弟弟的一样多。
2. 名词性结构做补语。structures后面的句子是对community centers和religious edifices的补充说明。structures that represent = structures representing
3. as opposed to 表示一般程度的对比，= rather than，而the opposite of或opposite to 表示A和B是相反的，对立面，对面等，是非常强烈的比对。从句意可知，此处只是想比较commitment to A而非B，不是想说A和B截然相反的关系。

选项1，错在the opposite of being...
选项2，错在指代不明，A is B as much as C，究竟是B和C比较，还是A和C比较？as opposed to要接名词/名词性短语
选项3，错在not private ones，要与a public realm对称，用单数。且A is B as well as C，没有比较的意思。
选项5，错在as后面的they were多余了，且opposite of不能省略冠词

ron说，C项，reported暗示是别人report，而非这家公司自己，这是不符合句子意思的，就像说“I have a handmade item.”，暗示这个东西是别人做的，但是实际上是我自己手工做的话，应该说“I made the item by hand.”

错把foundation works一起看成主语，细看会发现如果把它当主语的话，会导致选项C D没有谓语（to 后面都是不定式的修饰语，其实在这里修饰主语也很奇怪），所以明显foundation应该是个单数主语，works为第三人称单数