题目内容

Lots of people go out to work, look after their children, manage a home, do leisure activities and __________ ( 社交) .

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If you are tired, irritable and often have stomachaches or headaches, you might have a 21st century stress __________ ( 失调) called adrenal fatigue.

Doctors warn that watching television for more than two hours per day when you are young can lead to learning difficulties and a loss of __________ (集中精力) .

习近平新时代中国特色社会主义思想是对马克思列宁主义、毛泽东思想、邓小平理论、“三个代表”重要思想、科学发展观的继承和发展,是马克思主义中国化最新成果,是党和人民实践经验和集体智慧的结晶,是中国特色社会主义理论体系的重要组成部分,是全党全国人民为实现中华民族伟大复兴而奋斗的行动指南,必须长期坚持并不断发展。习近平新时代中国特色社会主义思想的历史地位体现在哪些方面?

人体中氮的唯一来源是哪类营养素( )

A. 蛋白质
B. 维生素
C. 碳水化合物
D. 矿物质
E. 脂肪

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