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There has been a recent trend in the food service industry toward lower fat content and less salt. This trend, which was started by the medical community (医学界)____ a method of fighting heart disease, has had some unintended side ____ (effect) such as overweight and heart disease—the very thing the medical community was trying to fight.
Fat and salt are very important parts of a diet. They are required ____ (process) the food that we eat, to recover from injury and for several other bodily functions. When fat and salt____ (remove) from food, the food tastes as if it is missing something. As ____ result, people will eat more food to try to make up for that something missing. Even____ (bad), the amount of fast food that people eat goes up. Fast food ____ (be) full of fat and salt; by____ (eat) more fast food people will get more salt and fat than they need in their diet.
Having enough fat and salt in your meals will reduce the urge to snack(吃点心) between meals and will improve the taste of your food. However, be____ (care) not to go to extremes. Like anything, it is possible to have too much of both,____ is not good for the health.
。恒容时，温度升高，H2浓度减小。下列说法正确的是（ ）
