[阅读理解]

【题干】Swapping postcards has become an interesting hobby for people who are curious about the big world in which they live .Swapping postcards can keep pen friends in touch .A postcard is a simple and beautiful way for someone to share his thoughts and memories .
There are some great websites that can help one develop his interest in postcard swapping .For example,http://www.doczj.com/doc/da075f22ccbff121dd3683ad.html ,started in 2005 by a Portuguese citizen,is a free website that connects people who share a passion for swapping postcards.If you want to receive postcards from other members ,you should e-mail a postcard to the address sent by the website after registration(注册) .After the individual confirms that he has received the card, your name will be added to the list of people to receive postcards .
Swapping postcards with people in other countries is also a great way to learn about the world;each postcard can be a window to another culture. It is like bringing the world to your mailbox.
Fiona, a member of postcrossing.com,says,''I love swapping postcards!Although it seems quite time-consuming to pick one ,write it and post it ,it is the amusement of receiving a flash of sunshine or humor that makes it worthwhile.''

【题目】The first paragraph tells us that ____ .
A.postcards are simple and beautiful
B.Swapping postcards is a hobby for all people
C.Swapping postcards can keep pen friends in contact
D.Those who swap postcards have lost interest in the real word

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