[单项选择]Study confirms that moderate drinking reduces stroke risk. Similar to the way a drink or two a day protects against heart attacks, moderate alcohol consumption wards off strokes, a new study found.
The study also found that the type of alcohol consumed—beer, wine or liquor-was unimportant. Any of them, or a combination was protective, researchers reported in today’s Journal of the American Medical Association. "No study has shown benefit in recommending alcohol to those who do not drink", cautioned the authors, led by Dr. Ralph L. Sacco of Columbia University College of Physicians and Surgeons in New York. But the new data support the guidelines of the National Stroke Association, which say moderate drinkers may protect themselves from strokes by continuing to consume alcohol, the authors said.
The protective effect of moderate drinking against heart attacks is well established, but the data had been conflicting about alcohol and strokes, the authors said. The new study helps
A. he is in serious doubt about the validity of the study
B. drinking alone can not protect against strokes
C. people should add alcohol to their daily diet
D. the study has not built a link between drinking and high blood pressure

[单项选择]Study confirms that moderate drinking reduces stroke risk. Similar to the way a drink or two a day protects against heart attacks, moderate alcohol consumption wards off strokes, a new study found.
The study also found that the type of alcohol consumed—beer, wine or liquor-was unimportant. Any of them, or a combination was protective, researchers reported in today’s Journal of the American Medical Association. "No study has shown benefit in recommending alcohol to those who do not drink", cautioned the authors, led by Dr. Ralph L. Sacco of Columbia University College of Physicians and Surgeons in New York. But the new data support the guidelines of the National Stroke Association, which say moderate drinkers may protect themselves from strokes by continuing to consume alcohol, the authors said.
The protective effect of moderate drinking against heart attacks is well established, but the data had been conflicting about alcohol and strokes, the authors said. The new study helps
A. different wines work differently on drinkers at stroke risk
B. nondrinkers should also consume a moderate amount of alcohol
C. drinkers should keep to one kind of alcohol to ward off strokes
D. moderate alcohol consumption protects against strokes

[单项选择]Moderate drinking reduces stroke risk, study confirms. Similar to the way a drink or two a day protects against heart attacks, moderate alcohol consumption wards off strokes, a new study found.
The study also found that the type of alcohol consumed -- beer, wine or liqour-- was unimportant. Any of them, or a combination, was protective, researchers reported in today’s Journal of the American Medical Association. "No study has shown benefit in recommending alcohol consumption to those Who do not drink", cautioned the authors, led by Dr. Ralph L. Sacco of Columbia University College of Physicians and Surgeons in New York. But the new data support the guidelines of the National Stroke Association, which say moderate drinkers may protect themselves from strokes by continuing to consume alcohol, the authors said.
The protective effect of moderate drinking against heart attacks is well established, but the data has been conflicting about alcohol and strokes, the authors said. The n
A. it refutes early studies on the protective effect of moderate drinking against heart attack
B. it confirms early studies of moderate drinking against heart attacks
C. it helps to resolve the disputes over the effect of moderate drinking against stroke
D. it finds that moderate drinking can benefit people of different races equally well

[单项选择]
Moderate drinking reduces stroke risk, study confirms. Similar to the way a drink or two a day protects against heart attacks, moderate alcohol consumption wards off strokes, a new study found.
The study also found that the type of alcohol consumed -- beer, wine or liqour -- was unimportant. Any of them, or a combination, was protective, researchers reported in today’s Journal of the American Medical Association. "No study has shown benefit in recommending alcohol consumption to those who do not drink", cautioned the authors, led by Dr. Ralph L. Sacco of Columbia University College of Physicians and Surgeons in New York. But the new data support the guidelines of the National Stroke Association, which say moderate drinkers may protect themselves from strokes by continuing to consume alcohol, the authors said.
The protective effect of moderate drinking against heart attacks is well established, but the
A. it refutes early studies on the protective effect of moderate drinking against heart attack
B. it confirms early studies of moderate drinking against heart attacks
C. it helps to resolve the disputes over the effect of moderate drinking against stroke
D. it finds that moderate drinking can benefit people of different races equally well

[单项选择] To most Africans, tribalism simply means very strong loyalty to one’’s ethnic group. It is a force that can be both good and bad. By definition tribalism means sharing among members of the extended family. It makes sure that a person is taken care of by his own group. To give a job to a fellow tribesman is not wrong; it is an obligation. Similarly ,for a politician or military leader it is considered good common sense to choose his closest adviser from people of his own tribe. This ensures security, continuity, authority. Tribal loyalty may mean a quick promotion--from sergeant to captain, from clerk to manager--within a very short time. Modern African politicians publicly speak out against tribal divisions. Yet it remains perhaps the most powerful force in day-to-day African life. As evidence of tribalism, in 1977 in Kenya, president Jomo Kenyatta’’s tribe controlled business and politics. Eight of the 21 cabinet posts, including the most important four were filled. by Kikuyus
A. Four.
B. Two.
C. One.
D. Three.