[填空题]Heart disease is a main cause of death in developing countries.

[填空题]Heart disease is a main cause of death in developing countries.

[填空题]AIDS is the leading cause of death among women and babies in 15 cities of the USA.

[填空题]AIDS is the fourth leading cause of death in the whole world; it__________________(使很多家庭丧失了父母和孩子).

[单项选择]

Falls are the number one cause of death to old people at home. Most old people can live safely at home if they make a few changes. Falls are common as people are getting older. Up to half of home accidents could be prevented by making some very simple changes. Here are a few suggestions.
Mark trouble spots with bright tapes. The first and last steps on stairs are usually high-risk accident are as. Applying bright tapes and using bright light in these areas would make these spots easier to see.
Put grab bars(扶手) in the bathroom. A large number of falls occur in the bathroom. This is unfortunate(不幸的) because it’s easy to make the area safe from accidents. Putting grab bars in the bathroom gives people something to hang on to.
Invest in a personal alarm. A personal alarm can be started if a person falls or otherwise gets in trouble. With the push of a button, the alarm automatically sends a signal, which gets someone to call and see if the person needs
A. are free from home accidents
B. can improve their health
C. are likely to live longer
D. can live more safely

[单项选择]1. Drug Reactions——A Major Cause of Death
Adverse (有害的) drug reactions may cause the deaths of over 100, 000 US hospital patients each year, making them a leading cause of death nationwide, according to a report in the Journal of the America Medical Association.
"The incidence of serious and fatal adverse drug reactions (ADRs) in US hospitals was found to be extremely high, " say researchers at the University of Toronto in Ontario, Canada.
They carried on an analysis of 39 ADR--related studies at US hospitals over the past 30 years and defined an ADR as "any harmful, unintended, and undesired effect of a drug which Occurs at doses used in humans for prevention, diagnosis, or therapy. "
An average 6.7% of all hospitalized patients experience an ADR every, year, according to the researchers. They estimate that "in 1 994, overall 2, 216, 000 hospitalized patients had serious ADRs, and 106, 000 had fatal ADRs. "This means that ADRs may rank as the fourth single largest
A. Right
B. Wrong
C. Not mentioned

[单项选择]When risk of death from heart attack is plotted on a graph against alcohol consumption, studies consistently show a U-shaped curve, which suggests that non-drinkers and heavy drinkers have higher rates of heart disease than light to moderate drinkers. The implication is that moderate drinking offers protection from heart disease.
For years, doctors believed that the death rate among people who do not drink at all was artificially high because it included a substantial number of reformed drinkers, irreparably damaged by alcohol. However, more recent studies which separate life-long drinkers from abstainers have shown that abstainers are still at high risk.
Studies have shown that moderate drinkers have higher levels of high-density lipoproteins (脂蛋白) in their blood. This is the "good" cholesterol that protects against heart disease. Alcohol also appears to reduce the risk of heart diseases. Though drinking alcohol in moderation undoubtedly brings some benefits, it is impor
A. Britain.
B. The United States.
C. France.
D. Japan.