… was started by medical community (医学界) __61__ a method of … some unintended side __62__ (effect) such as overweight and heart disease … are required __63__ (process) the food … When fat and salt __64__ (remove) from food, … As __65__ result, … Even __66__ (bad), the amount of fast food that people eat goes up. Fast food __67__ (be) full of … by __68__ (eat) more fast food … be __69__ (care) not to go to extremes. … both, __70__ is not good … 需要掌握单词和语法的功能用法。