短文改错

    During the summer holidays, I thought I should do anything meaningful instead of touring. So I got a job at fast food restaurant and worked there for a cleaner. I worked 7 hours a day for three week. The job was hard and boring and seemed endless, it made me so tired that I nearly left it halfway. Therefore, I stuck to it with determination. Every day I start off for work early in the morning and got to home late in the evening. Finally, I finished the job before the new school term began. Now, I understand that labor means. I consider it a successful experience, which is worth remembered forever.

在庆祝神舟九号载人航天飞行圆满成功大会上，******强调，全党全军全国各族人民要学习和发扬载人航天精神，万众一心、众志成城，奋发图强、拼搏奉献，努力为夺取全面建设小康社会新胜利、开创中国特色社会主义事业新局面而团结奋斗。载人航天精神实质上是中华民族精神的具体体现，其核心是（   ）

黄山比泰山垂直距离高出349米，这是指（    ）