Recently divorced in my 30s, I had no job and was on my way downtown on a rainy day to go to the employment offices. I had no umbrella, for my old one had fallen apart, and I couldn’t afford another one.

I sat down in the streetcar--- there against the seat was a beautiful silk umbrella with a silver handle inlaid (镶嵌着…的) with gold and bright enamel (珐琅). I had never seen anything so lovely. I examined the handle and saw a name on it. The usual procedure would have been to turn in the umbrella to the conductor, but I decided to take it and find the owner myself.

I got off the streetcar in a downpour and carefully opened the umbrella to protect myself. Then I searched a telephone book for the name on the umbrella and found it. I called and a lady answered. Yes, she said in surprise that was her umbrella, which her parents, now dead, had given her as a birthday present, but it’d been stolen from her locker at school years before.

She was so excited that I forgot I was looking for a job and went directly to her house. She took the umbrella, her eyes filled with tears. I was only too happy to see her get back the lost umbrella, and get a job she offered me.

写作要求

以30个词概括这篇短文的主要内容。

嘉峪关具有异常严密的防守体系，包括( )。

A．内城

B．瓮城

C．罗城

D．外城

E．城壕