Jon Hunt is a famous writer and he works at home. He is1from many writers. Why? Because he likes going outside and2 For example, he often runs, goes camping and goes skateboarding.3his healthy lifestyle(生活方式),he is very happy. And he is4in good health. How can he keep5? He tells us three pieces of advice(建议). First, keep exercising every day. He gets up at 6∶00 a.m. and runs6one hour every morning. And he walks to mountains three times a week. So don't be lazy. Second, remember to have7.It is very important. For him, he always has lots of porridge, bread or milk after doing morning exercises. Then8after working. Don't worry too much about your work. It isn't 9for your health. You can10listening to music or walking with friends if you have time.

我国加大力度严禁查、严惩腐败官员，这是因为反腐倡廉（　　）

①有利于建成高效廉洁、公正透明的政府        ②有利于维护少数人的切身利益

③有利于维护法律的权威，建设法治国家        ④有利于建设公平正义、民主法治的社会主义和谐社会。

用显微镜观察植物细胞装片的同一部位．若想在视野中看到的细胞数目最多，应该选择的组合是（  ）

一名小学生的年龄和身高（单位：cm）的数据如下表：

由散点图可知，身高y与年龄x之间的线性回归方程为$\stackrel{\wedge }{y}$=8.8x+$\stackrel{\wedge }{a}$，预测该学生10岁时的身高为（　　）