题目

In the rush to get to school, you drop a piece of toast on the floor. Do you throw it away or decide it’s still OK to eat? If you’re like most people, you eat it. Maybe you follow the “5-second rule”, which claims foods are safe to eat if you pick them up within 5 seconds after dropping them, but you might want to think again. Scientists now say that 5 seconds is all it takes for foods to become polluted with enough bacteria to make you sick. Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If you eat foods on which these bacteria are growing6、以下四件大事列入《2009年中国大事瞭望》，请从中任选两件大事，制成一副对联。 2009年中华人民共和国成立60周年，2009年纪念五四运动90周年，2009年西藏实现民主改革50周年，2009年澳门回归祖国10周年。