XDF Section 1-18

helena220

There are far fewer children available for adoption than there are people who want to adopt. Two million couples are currently waiting to adopt, but in 1982, the last year for which figures exist, there were only some 50,000 adoptions.
Which of the following statements, if true, most strengthens the author’s claim that there are far fewer children available for adoption than there are people who want to adopt?
(A) The number of couples waiting to adopt has increased significantly in the last decade.
(B) The number of adoptions in the current year is greater than the number of adoptions in any preceding year.
(C) The number of adoptions in a year is approximately equal to the number of children available for adoption in that period.
(D) People who seek to adopt children often go through a long process of interviews and investigation by adoption agencies.
(E) People who seek to adopt children generally make very good parents.
答案C。我一点思路也没有。

uclb5550

From choice C, you know there are estimated 50000 children available for adoption around 1982 period. However, there are TWO million couples waiting for the adoption. So, the children is undersupplied. Choice C.

znprc

结论是NUMBER OF CHILDREN AVAILABLE 和PEOPLE WHO WANT TO ADOPT之间的关系；论据是NUMBER OF ADOPTION 和 PEOPLE WHO WANT TO ADOPT之间的关系。显然，假设是NUMBER OF ADOPTION 等于NUMBER OF CHILDREN AVAILABLE - 即在结论和论据的两个差异概念之间架桥。