食油、净水和酒都是液体,故而放在一个题目来议论。食油,其营养价值,自古以来就有定论,勿庸赘述。更重要的是离开了食油,不管你烹调技艺何等高超,也难以制出美味佳肴。不管是中餐,还是西餐;不管是荤菜,还是素菜;不管是加热,还是凉拌;不管用料千差万别,还是煎炸烹炒操作不同,都离不开食油。所不同的只是来源于动物、植物罢了。因此,在短缺经济年代,历来把食油的数量,作为观察和评价人们生活水平高低的标志之一。也正因为如此,人们对食油很爱惜,可以说是一点一滴的计较。人们还以食油比喻一些不易得到的东西,比如“春雨贵似油”等等。在历 Edible oil, water purification and wine are liquid, so put a topic to talk about. Edible oil, its nutritional value, since ancient times there is a conclusion, do not repeat them. More importantly, left edible oil, no matter how superb cooking skills, but also difficult to produce delicious food. Whether it is Chinese food, or Western food; whether it is meat dishes, or vegetarian; whether it is heated or cold; regardless of materials vary widely, or frying and frying operations are inseparable from cooking oil. The only difference is that they come from animals and plants. Therefore, in the shortage of economy, the quantity of cooking oil has always been regarded as one of the signs of observing and assessing people’s living standards. Precisely because of this, people are very cherished cooking oil, it can be said that bit by bit, care about. People also metaphor for some difficult to get with cooking oil, such as “Spring is like oil ” and so on. In the calendar