2. 外语
  3. The decrease【C1】______blood pressure occurred【C2】______race or【C3】______and whether or not study participants are a "typical Ame

The decrease【C1】______blood pressure occurred【C2】______race or【C3】______and whether or not study participants are a "typical Ame

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问题      The decrease【C1】______blood pressure occurred【C2】______race or【C3】______and whether or not study participants are a "typical American diet",【C4】______is high in saturated fats and contains few fruits and【C5】______or the so-called DASH(for Dietary Approaches to Stop Hypertension)diet, which emphasizes lots of fresh【C6】______, low-fat diary, fish and fewer sweets and which was proved in 1997 to reduce hypertension.  The biggest decrease in blood pressure in this study was recorded in subjects who ate the DASH diet and reduced their sodium【C7】______to 1,200rug a day.
     Why is this significant?【C8】______-health experts estimate that Americans consume, on average, about 3,500 mg of sodium【C9】______about 9 grams of salt daily. It’s not【C10】______we’re that heavy-handed with the saltshaker. Most of our dietary sodium is added【C11】______food processing.【C12】______to 1,200rog, you’d have to forgo most【C13】______foods, take-out deliveries and restaurant meals.
     So pay attention【C14】______how much salt you’re eating, but don’t forget to make fruits, vegetables and whole grains a【C15】______part of your diet. They’ll help  41  your cholesterol level
【C17】______your blood pressure. Be sate to drink alcohol【C18】______, if at all.【C19】______weight even just 4.5kg and exercising at least 30 minutes most days of the week can also have a marked【C20】______on blood pressure.
【C4】
选项 A、which
B、that
C、what
D、who
答案A
解析 考查非限定性定语从句的引导词，应由 which 引导。
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