听力原文：If it tastes good, it must be bad, so the saying goes. But delicious dark chocolate may be the exception to the rule. It may help lower blood pressure by an average of 10%.
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【参考答案】

俗话说味道好营养一定很差。然而美味的黑巧克力却可能是个例外因为黑巧克力可以让血压降低平均达10%。
俗话说，味道......

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