The
liver is the second largest organ in your body. The liver performs many jobs in
your body. It processes what you eat and drink into energy and nutrients your
body can use. The liver also removes harmful substances from your
blood. One out of every 10 Americans is affected by liver
disease. Liver disease is one of the top 10 causes of death in the United
States. There are more than 100 liver diseases. Viruses cause some of them, like
hepatitis A, hepatitis B and hepatitis C. Others can be the result of drugs,
poisons or drinking too much alcohol. If the liver forms scar tissue because of
an illness, it's called cirrhosis. Cancer can affect the liver. You should also
inherit a liver disease such as hemochromatosis. Liver disease
can manifest in many ways. Characteristic manifestations
include jaundice, liver enlargement, portal hypertension and etc. Sometimes the
manifestations of liver disease are not obvious. For example, symptoms may
include fatigue, a general feeling of illness, loss of appetite, and mild weight
loss. However, people may not notice these symptoms, and these symptoms are also
typical of many other diseases. Thus, liver disease can easily be overlooked,
particularly in its early stages. Hepatitis A vaccination is
the best way to prevent HAV (hepatitis A virus). Hepatitis B vaccination is the
best way to prevent HBV. Other ways to stop the spread of HBV are: not sharing
needles; practicing safe sex; not Sharing razors, toothbrushes, or other
personal items; using only clean needles for fattoos and body piercings. There
is no vaccine to prevent HCV. The only way to prevent HCV is to avoid direct
contact with infected blood. Eating a healthy diet and
exercising regularly help the liver to work well. Limit the amount of alcohol
you drink. When medicines are taken incorrectly, the liver can be harmed. So
follow dosing instructions and talk to a doctor or pharmacist about the
medicines you are taking. Mixing alcohol and medicines can harm your liver, even
if they are not taken at the same time. Toxins can injure liver cells. So limit
direct contact with toxins from cleaning and aerosol products, insecticides,
chemicals, and additives in cigarettes. Do not smoke.
单选题
Which of the following statements is NOT true according to the passage?
A. Top ten causes of death in the US include liver disease.
B. 10% of Americans die of liver disease.
C. 10% of Americans suffer from liver disease.
D. Over 100 liver diseases exist.
【正确答案】
B
【答案解析】[解析] 由第二段第二、三句可知，A、D两项正确。由第二段第一句“One out of every 10 Americans is affected by liver disease.”可知，每10个美国人中就有1个人患有肝病，而不是美国人中有10%死于肝病，C项正确，B项错误，故选B。
单选题
The word "manifest" in Paragraph 3 can be best replaced by ______.