题目内容：

    In her essay Friends, Good Friends and Such Good Friends, Judith Viorst creates a number of categories(分类) for Friendships, for her, some friendships are based on convenience, some on current shared interests, some on past shared history, some on accidental crossing - of - paths, and on and on. 1.

I have just two categories of friends. 2. The short-term, low-investment (投资) category is a large and changeable group made up of people I’ve met since I moved to New Orleans eighteen months ago. My New Orleans friends are mostly classmates in my writing courses, people who see and comment my writing courses and whose writing I see and comment.

3. But they are also unstable(不稳定的) and possibly disappointing. This is because we often know each other better through reading each others writing than we do through honest time spent together. Such knowledge and familiarity, without necessarily the investment can create stresses.

The long-term, high-investment category is primarily made up of people I left behind when I moved to New Orleans. 4. They are friends who know me, love me, and who can be counted on for anything, even though they live 1,500 miles away. I know these friends from the way they wash dishes to the way they choose a restaurant or drink their coffee. Every one of them was once a person in my life, standing in the low-investment category, and then slowly becoming forever friends. 5. And the work is hard.

A.And the only difference between the two is time and lots of work.

B.Such classification by her is beyond me.

C.The change takes just that Investment.

D.In many ways, they are friends whose concern is only based on profit.

E.These low-investment friendships are delightfully strong and serious at times.

F.This is a firm and efficient group, whose numbers can be counted on one hand.

G.Friends of the low-investment category are always trustworthy