题目

Benefits of SportsTaking exercise is a physical, mental and social adventure. It’s a great way for children to take a break from study and release extra energy. It also helps them lead fuller and happier lives as regular sports have proven to improve general well-being.【1】 Regardless of your fitness level when you start playing sports, you’ll notice an increase in your overall fitness once you take part. Nearly every sport requires physical activity and the skills needed to be competitive. Basketball players focus on strength training. 【2】 The training process helps encourage physiσ键可由两个原子的s轨道、一个原子的s轨道和另一个原子的p轨道或一个原子的p轨道和另一个原子的p轨道以“头碰头”方式重叠构建而成.则下列分子中的σ键是由两个原子的s轨道以“头碰头”方式重叠构建而成的是 A、H2         B、HCl              C、Cl2           D、F2