题目

  When looking at Western Europe，we don’t usually think about poverty—but in fact，some people in modern—day Britain are so hard up that they can’t afford to buy food．   Back in 2008．the financial crisis caused a lot of unemployment．Then there were the cuts to the welfare system in 20 1 3 which added to the problem—and many British people fell into debt．It’s estimated that 500，000 people in the UK have turned to food banks，just to get by．   Steph Hagen，who works in a Nottingham food bank，says：“People do not go to a food bank because it's an op下列是日常生活中的常见现象，其中只属于物理变化的是（　　）A、光合作用B、钢铁生锈C、食物腐败D、气球充气变大