检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:杨庆春
机构地区:[1]辽宁
出 处:《初中生学习指导》2021年第9期38-39,共2页
摘 要:充足的睡眠能增强身体抵抗力,促进人体的正常生长发育, 充足的睡眠对于保护人的心理健康与维护人的正常心理活动也极其重要。如今青少年忙于功课学习,他们睡眠不足的问题应该引起社会关注!I am so worried about my son’s health that I can't help writing to you.Last night,a school night,my 11-year-old son’s baseball team played a game that lasted until 9:30.By the time we got home and he had a quick dinner and shower,it was 10:30一an hour and a half later than a child who gets up at 6:30 should be going to bed.We love baseball.My son is having fun,getting exercise,and learning patience,teamwork and sports spirit.But the truth is that the game also influences his sleep.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.222