题目内容：
(阅读理解题)Passage 3
Many people catch a cold in the springtime and/ or fall. It makes us wonder if scientists can send a man to the moon, why can.t they find a cure for the common cold. The answer is easy. There are hundreds of kinds of cold viruses out there. You never know which one you will get, so there isn.t a cure for each one.
When a virus attacks your body, your body works hard to get rid of it. Blood rushes to your nose and brings congestion with it. You feel terrible because you can.t breathe well, but your body is actually "eating" the virus. Your temperature rises and you get a fever, but the heat of your body is killing the virus. You also have a runny nose to stop the virus from getting to your cells. You may feel miserable, but actually your wonderful body is doing everything it can to kill the cold.
There is one interesting thing to note ―some scientists say taking medicines when you have a cold is actually bad for you. The virus stays in you longer because your body doesn.t have a way to fight it and kill it. Bodies can do a marvelous job on their own.
(1). (单选题)
What is the passage mainly about? ( )
(本题2.0分)
A、 Why there is no cure for the common cold.
B、 How you feel when you catch a cold.
C、 How your body kills the cold.
D、 How to prevent a cold.
参考答案：