gwd-20-q3－并列从句疑惑

战友们能否帮我解答下题，后半句的rules作为从句为什么可以省略that 呢？我觉得很别扭，生硬

Q3:

The state has proposed new rules that would set minimum staffing levels for nurses, rules intended to ensure that at least one nurse is assigned for every four patients put through triage in a hospital emergency room.

rules intended to ensure that at least one nurse is assigned for every four patients put through triage in a hospital emergency room

rules with the intent of ensuring one nurse at least to be assigned for every four patients to be put through triage in a hospital emergency room

rules intending to ensure at least one nurse is assigned for every four patients in a hospital emergency room put through triage

with the intent of ensuring that at least one nurse should be assigned for every four patients in a hospital emergency room that are put through triage

and this is intended to ensure one nurse at least to be assigned for every four patients put through triage in a hospital emergency room

正确答案a

还有29题，这里的 figure指得不是书而是作者写了两本书吗？以及，what的用法是该做何解释呢？我认为just as更好些：

Q29:

A leading figure in the Scottish  enlightenment,  Adam Smith’s two major books are to democratic capitalism what Marx’s Das Kapital is to socialism.

Adam Smith’s two major books are to democratic capitalism what

Adam Smith’s two major books are to democratic capitalism like

Adam Smith’s two major books are to democratic capitalism just as

Adam Smith wrote two major books that are to democratic capitalism similar to

Adam Smith wrote two major books that are to democratic capitalism what

Q3 ；这里rules是名词，做同位语。 表明建议这些rules的最初目的。 建议MM再看一遍。

Q29: figure是指一个人的，做同位语修饰adam smith。

E选项是一个习惯搭配 A is to B what C is to D  A 相对于B 正如 C相对于D, 主义 two major books 和 Marx's  das kapital的对等

欢迎讨论。

多谢答疑！

只是还是不太明白，第3题的E选项错在哪里呢？还有后面那句话“rules intended to ensure that at least one nurse is assigned for every four patients put through triage in a hospital emergency room.”中的“put through”的主语是哪个呢？后面这个从句两个谓语is assigned 和put through，如果put的主语是patients的话后者前面不需要加个that?

是不是有点钻牛角尖了？。。。

到瓶颈了，语法是越看问题越多