晕，如此多得问题

killer34888

.In an assessment of the problem faced by rural migrant workers, the question of whether they are better off materially than the urban working poor is irrelevant.

THAN之后是否可以加助动词，如果可以的话，应该加哪一个助动词，如果加IS，翻译过来很别扭，那个问题是否他们本质上景况更好比城市中工作的穷人是－－是无关的

turtlechen

This is question 大全369. Next time please insert the whole question, answers, and the underline.

You are asking about the usage of more/ adj+er... than....
There are many usages in this type of sentence.  The main difference is whether you want to compare the subjuects, the objects, or the actions.
1. compare the subjects
(they) are better off materially than (the urban working poor) (is省)

813.The question of whether to divest themselves of stock in companies that do business in South Africa is particularly troublesome for the nation’s 116 private Black
colleges because their (economic bases) are often more fragile than (those) of most predominantly White colleges. (are省)

461. Judge Forer recognizes that (the American judicial system) provides more safeguards for accused persons than does (the legal system of any other country), but she believes there is a great disparity between the systems of justice accorded rich and poor.
does不能省，意思会错！

2. compare the objects
they are better off (in material condition) than (they are省) (in physical).

OG112 Domestic automobile manufacturers have invested millions of dollars in research to develop (cars) even more gasoline-efficient than (those) at present on the road

killer34888

好精辟的说明。
太感谢了，难怪这里人气如此旺，大牛多多