A、It has to suffer the misery passively. B、It will produce more cells. C、It will rebuild its systems. D、It will work hard to kil

Many people catch a cold in the springtime 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 see actually 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. 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 ninny 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.
    Different people have different methods to cure colds. In the United States and some other countries, for example, people might eat chicken soup to feel better. Some people take hot baths and drink warm liquids. Other people take medicines to stop the fever, headache, and runny nose.
    There is one interesting tiring to note—same 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 an amazing job on their own, and medicines may affect the body’s work. However, others can hardly believe it. So, there is a joke on taking medicine when you have a cold. It goes like this: It takes about 1 week to get over a cold if you don’t take medicine, but only 7 days to get over a cold if you take medicine.