The sports centre

    The sports centre (中心) is open from next week and it' s only $20 a year.

    There are some soccer teams — one for girls and two for boys.

    There is also a basketball team for boys.

    There are six tennis courts (球场). They are free on weekdays, but it is $2 an hour on the weekend. Every year there are three tennis games. The first is next week.

    On weekdays the swimming pool (游泳池) is open from 7:00 to 18:00, but it is closed(关闭) at lunchtime (12:00~14~00). On the weekend, it is open all day. It is closed in the summer holidays.

罗马共和国时期，国家的最高官职是（    ）

依次填入下面一段横线处的语句最恰当的句子是（    ）

    人类并非像想象的那样脆弱，紧张的确是生活中不可缺少的部分。____________。生活在战争期间的人，发病率明显低于生活在和平环境中的人。这是由于人们在战争环境中精神紧张、生活积极、进取心强，所以长期充满活力，抗病能力也随之增强。