题目内容：
回答题Free Statins ( 降胆固醇药物) With Fast Food Could Neutralize Heart Risk
Fast food outlets could provide statin drugs free of____51____so that customers can reducethe heart disease dangers of fatty food, researchers at Imperial College London____52____in anew study.
Statins reduce the____53____of unhealthy "LDL" cholesterol (低密度脂蛋白胆固醇)in the blood. A group of trial data has proven them to be highly effective at lowering a person'sheart attack ____54 ____. In a paper published in the American Journal of Cardiology, Dr.Darrel Francis and colleagues calculate that the reduction in heart attack risk offered by a statin is____55____to offset the increase in heart attack risk from____56____a cheeseburger anddrinking a milkshake.
Dr Francis, from the National Heart and Lung Institute at Imperial College London, whois the senior author of the study, said: "Statins don't cut out all of the ____57____effects of cheeseburgers and French fries. It's better to avoid fatty food altogether. But we've worked outthat in terms of your____58____ of having a heart attack, taking a statin can reduce your riskto more or less the same____59____as a fast food meal increases it. " "It's ironic that peopleare free to take as many unhealthy condiments in fast food outlets as they ____60 ____ , butstatins, which are beneficial to heart health, have to be prescribed. It makes sense to make risk-reducing statins available just as easily as the unhealthy condiments that are____61____free ofcharge. It would cost less than 5 pence per____62____not much different to a sachet ofsugar. " Dr Francis said.
When people engage in risky behaviors like driving or smoking, they're encouraged to take____63____that lower their risk, like____ 64____a seatbelt or choosing cigarettes with filters.Taking a statin is a rational way of 65 some of the risks of eating a fatty meal.
请在第51____处填上正确答案。 A．change
B．charge
C．chain
D．chance
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