单项选择题

According to Dr. Sacco, ______.

A．different wines work differently on drinkers at stroke risk
B．non-drinkers 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

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热门试题

单项选择题

The new study conducted by Dr. Sacco and his colleagues is unique in that ______.

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

单项选择题

NBAC will leave the issue of embryo research undiscussed because ______.

A．embryo research is just a current development of cloning
B．the health of the child is not the main concern of embryo research
C．an embryo's life will not be endangered in embryo research
D．the issue is explicitly stated and settled in the law