1 . 听下面一段独白,回答以下小题
1.
2.
3.
1.
| A．The balance between school work and exercise. |
| B．The link between a healthy body and a healthy mind. |
| C．The change of the timetable in public schools. |
| D．The strong scientific evidence of staying healthy. |
| A．By allowing students to do physical exercise. |
| B．By asking students to do problem-solving tasks. |
| C．By doing experiments on American students. |
| D．By persuading teachers to improve students’ grades. |
| A．Students had more chances to do exercise. |
| B．Physical education courses became popular. |
| C．Students did better in their school work. |
| D．Running for 40 minutes a day was required. |
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