52. While all states face similar industrial waste problems, the predominating industries and the regulatory environment of the states obviously determines the types and amounts of waste produced, as well as the cost of disposal.
(A) all states face similar industrial waste problems, the predominating industries and the regulatory environment of the states obviously determines
(B) each state faces a similar industrial waste problem, their predominant industries and regulatory environment obviously determine
(C) all states face a similar industrial waste problem; their predominating industries and regulatory environment obviously determines
(D) each state faces similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determines
(E) all states face similar industrial waste problems, the predominant industries and the regulatory environment of each state obviously determine
选E吗？似乎也只有它符合主谓一致了。
E
还有一点就是while是表对比的，所以前面用all state，后面有each state
我也是选E，是用排除法做的，但是这句话的对比是什么意思呢？我觉得翻译过来好象意思不太通，不存在对比呀。
OG上解释，说“the regulatory environment is singular and must logically be completed by of each state rather than
of the states"
但题目中讲的是“（the predomination industries and the regulatory environment）of the states" 吧，怎么能够说是因为后者单数，所以要用“of each state"呢。虽然我也同意OG说的因为有对比的意思存在，所以all与each对应比较合理。
请教。
E
还有一点就是while是表对比的，所以前面用all state，后面有each state
同意，补充下while在这里表示although的意思，所以有表示对比和转折的意思，因此选E。
由此可见，句首的连词通常是很重要的。
OG上解释，说“the regulatory environment is singular and must logically be completed by of each state rather than
of the states"
但题目中讲的是“（the predomination industries and the regulatory environment）of the states" 吧，怎么能够说是因为后者单数，所以要用“of each state"呢。虽然我也同意OG说的因为有对比的意思存在，所以all与each对应比较合理。
请教。
我也不明白为什么the regulatory environment后面只能跟 of each state. enviornment是可数名词吗？如果是可数名词则比较好理解了。
我在SEC的网站上找到了一个例句：the prevailing laws and regulatory environment of each state in which we operate or seek to operate;
并且搜索"regulatory environment of each state",找到了23个链接（含1个GMAT网站）；搜索"regulatory environment of the states"只找到了4个连接，还有1个是GMAT网站。是不是这也说明前者更合适呢？
Thank you, 楼上的！
请教8楼:
为什么environment在这里是可数呢?万用字典的解释是
1此字作"环境"解,不能有复数形。作"自然环境"解时,要加the。如: protect the environment from pollution
难道本题的environment不是指环境吗?
先谢着啦!
Collins 解释
Environment: someone's environment is all the circumstances, people, things, and events around them that influence their life.
Example: The twins were separated at birth and brought up in entirely different environments.
不知道是否有錯，
1.(environment不可數) of (each state) 因該是平行
N單數(不可數)of N單數
2.在整個語意上 all state 與 each 對比
因此，這裡是文法與語意同時達到
OG解释:
The regulatory environment is singular and must logically be completed by of each state rather than of the states;the point of main clause is that all states do not share the same predominating industrys and regulatory enviroment.
请NN解答下,到底应该是以下哪种理解,谢谢!
1. (the predominant industries and the regulatory environment) of each state obviously determine
2. (the predominant industries )and (the regulatory environment of each state )obviously determine
这里是all states 和each state的对比，各个州都会有自己典型的环境
看来这么理解是可以的
我觉得这里的environment是可数的。
environment在表示外界环境(周围的状况)时，是可数的，eg:a happy home environment,adjust to a new environment;而表示自然环境时是不可数的,eg:air environment。
而此句意指监管的环境,应该属于前者的情况。
OG解释:
The regulatory environment is singular and must logically be completed by of each state rather than of the states;the point of main clause is that all states do not share the same predominating industrys and regulatory enviroment.
请NN解答下,到底应该是以下哪种理解,谢谢!
1. (the predominant industries and the regulatory environment) of each state obviously determine
2. (the predominant industries )and (the regulatory environment of each state )obviously determine
个人比较趋向于第一种理解，句意强调的是all states 和 each state 的比较。
og中说的the regulatory environment is singular and must logically be completed by of each state rather than of the states，意思是强调不能是the states的the regulatory environment,如果后面用复数形式的国家，就很容易理解成这些国家拥有的environment是一样的了
就好像说the book of the students，很容易理解成为这些学生们共有的一本书。
1. (the predominant industries and the regulatory environment) of each state obviously determine
all在句首表示整体的共性，用each在句尾表示个体的性质。。。
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