单项选择题

There are three kinds of memory: sense memory, working memory, and long-term memory. Think of them as three connected rooms in which you store different kinds of memories.
The first kind of memory is sense memory. Everything you are sensing right now is stored here. Perhaps you feel the sun on your face or smell the aroma(香味) of food. Sense memories last only a few seconds, but they connect one moment to the next. They give your life a flow, even though they are quickly forgotten.
You keep a few items(条目) in working memory. These are memories you need for what you are doing. Suppose you look up a friend’s telephone number in the phone book. You’ll probably remember the number for a little while. But if you get distracted(分神), you might quickly forget it. A memory usually stays in your working memory for just a few days at most. Working memory has another limit, too. Only a small number of items fit into it at any given time.
Memories you want to keep for a long time go into your long-term memory. They can stay with you all your life. In long-term memory, you can store a huge number of items. Can you remember how to play your favorite game Do you recall your first birthday party If so, you are bringing up memories that are stored in your long-term memory. Sometimes, people have trouble finding a particular long-term memory. Have you ever struggled to remember a familiar name or fact When this happens, people sometimes say the information is "on the tip of the tongue".

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