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设同时选择“休闲/度假”和“观光/游览”为主要出游目的百分比为x%，可以推测______。
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Eat for a Good and Healthful Life
Food(1)us alive. It is our sustenance and our pleasure. But recently, research has shown that the eating habits of the average Americans may be dangerous to future health.
The foods Americans now choose are oftentimes too(2)in calories and fats, so this article reports a new study: Diet and Health, Implications for Reducing Chronic Disease Risk.
The study, conducted(3)the National Research Council's Committee on Diet and Health,(4)that balancing nutrition, calories and activity is key(5)enjoying a long and healthful life.
The report recommends that most Americans increase(6)activity to a moderate level and make changes in food(7)and calories intake to maintain ideal weight. Most of us-- even those of us at ideal weight--need to eat(8)fat so that no more than 30% of our dally calories will come from fat.
That means cutting(9)on red meat and whole milk dairy products.(10), eat fish, chicken without skin, lean meats, and low-fat and no-fat dairy products.
The report of the Committee on Diet and Health recommends we eat five or more 1/2-cup servings of vegetables and fruits(11)-- especially green and yellow vegetables and citrus fruits.
Eating more fruits and vegetables doesn't have to mean increased calories intake. Many plant foods are nutrient-rich: they provide many vitamins and minerals for very few(12).
Nutrient-rich foods are particularly important for Americans(13)age 50. As we(14), we need to eat less because our bodies need(15)calories to function properly. But we still need full measures of vitamins and minerals to release the energy in our foods and make us feel strong and healthy.
According to the author, people of underdeveloped cultures can have______ language.
某企业2003年2月开业，领受房屋产权证、工商营业执照、商标注册证、土地使用证、特种行业经营许可证、税务登记证各一件；订立设备购销合同两件，所载金额分别为140万元和 280万元，其中140万元的合同最终未履行；订立借款合同一份，所载金额为40万元，另订立财产抵押合同一份，拟将一辆小汽车作为上述借款的抵押物，合同未载明金额；在企业的营业账簿中，“实收资本”科目载有资金2000万元，“资本公积”科目没有金额，其他账簿10件。至 12月底，“实收资本”科目所载资金增加到2500万元，“资本公积”科目载有金额400万元。
根据所给资料，依据印花税的有关规定回答下列相关问题：
企业订立设备购销合同应缴纳印花税()元。
根据图4回答29、30题。
如图4，某航空公司托运行李的费用与托运行李重量的关系为线型函数。
由图4可知行李的重量不超过______ Kg，就可免费托运。
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