下列关于钠尿肽（BNP）的说法哪项不正确（）
A.BNP是由心、脑分泌的一种含32个氨基酸的多肽激素
B.BNP是一个较可靠的心衰诊断指标，但其升高程度和心衰严重程度并不一致
C.BNP有很高的阴性预测价值，BNP正常可排除心衰的存在
D.在呼吸困难病人，BNP是一个将来发生CHF的较强的预示因子
E.BNP在机体中起排钠、利尿、扩张血管的生理作用
参考答案：B
根据短文内容，从短文后的选项中，选出能填入空白处的最佳选项。选项中有两项为多余选项。 小题1:____________. 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 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. 小题2:____________. Blood rushes to your nose and cause a block in it. You feel terrible because you can’t breathe well, but your body is actually eating the virus. Your temperature goes up 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 into your cells. You may feel very uncomfortable, but actually your wonderful body is doing everything it can to kill the cold. 小题3:_____________. In the United States and some other countries, for example, people might eat chicken soup to make themselves feel better. Some people take hot baths and drink warm liquids. Other people take medicine to stop various symptoms (症状) of colds. 小题4:____________. 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. There is a joke, however, on taking medicine when you have a cold. It goes like this: It takes about one week to get over a cold if you don’t take medicine, but it takes only seven days to get over a cold if you take medicine.
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