下面函数中，是正比例函数的是（　　）

下列物质中，被称为理想“绿色能源”的是（）

根据短文内容，请将单词填写在题号对应的横线上。

    Most people nowadays are so busy with their lives that they do not have time to enjoy a healthy and ____ (balance) diet. For most individuals, as ____ result of eating foods rich in fats and sugar several years, they choose to go on a diet but do not succeed at the end. Be sure to be with a strong ____ (aware) that you are ____ you eat! Therefore, maintaining a healthy diet not only ____ (provide) your body with energy but also numerous health benefits. One is that you will keep a healthy weight and is also the easiest and most ____ (benefit) way in which you can be energetic and protect yourself ____ a number of diseases when growing old. Another benefit is that you will meet your everyday nutritional ____ (require). ____ (basic) speaking, you should ensure that you take the good amount of vegetables, grains, milk and proteins. In most cases, a healthy diet can help you decrease the risk of ____ (get) some diseases like diabetes and cancer.

历史上任何一次真正的改革，都是以解放思想、转变观念为先导的。

战国时期的百家争鸣是中国历史上第一次大规模的思想解放运动，基本上形成了中国的传统文化体系，有力地推动了中国历史的发展。

改革开放以来，我们坚持解放思想、实事求是，用改革的办法解决了发展中的一系列问题。

当前我国发展面临一系列突出矛盾和挑战：发展中不平衡、不协调、不可持续问题依然突出，科技创新能力不强，发展方式依然粗放，城乡区域发展差距和居民收入分配差距依然较大……因此，全面深化改革处在攻坚期和深水区，我们要继续坚持解放思想，开展新一轮的思想解放运动，凝聚社会共识，坚定中国特色社会主义文化的发展方向，为全面深化改革保驾护航。