题目内容：

阅读下面短文，在空白处填人1个适当的单词或括号内单词的正确形式。

While many countries are trying hard 1.(deal) with increasing rates of childhood obesity(肥胖), Japan stands out. The country has both high scores for nutrition and very low obesity rates.

Where 2.(do) the country's secret lie? Some say it's school lunches 3.matter a lot. According to a UNICEF report, Japan tops the charts for childhood health indicators. with low rates of infant(婴儿) deaths and few underweight children. It also has the 4.(low) rate of childhood obesity among the 36 member countries of the Organization for Economic Cooperation and Development. Certainly, there are various factors at work, including a health-conscious society and 5.(regular) scheduled health check-ups.

6., a nationwide school lunch program actually plays a key role. In schools, the lunches are compulsory, which means that no packed lunches 7.(allow). While they are not free for most, they are financially sponsored, making them affordable 8.students.

Each meal is designed to have around 600 - 700 calories, 9.(balance) between carbohydrates(碳水化合物), proteins and vegetables. A typical meal is rice with grilled fish and a leafy vegetable, 10.is served with soup with pork, alongside milk and dried fruit.