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作者学术词汇使用比较准确，词汇表达较丰富，但仍需增加词汇积累；从句数量偏少；文章结构严谨，有效地使用了语句间的衔接成分。
In judging from what is detailedly demonstrated in the above-mentioned diagram,we can observe distinctly that although the consumption of grain decreased from 24% in 1986 to 21% in 1990,the consumption of milk and meat had a steadily increase during the same period. According to the figures which is provided,there is no complicated issue but can be explained about why grain consumption decreased and in the meanwhile,why milk and meat consumption increased.On folks'dinner tables,the traditional dominant food-grain has given some way to milk and meat,which were seldom seen on dinner tables before.Siince the economic reform in 1978,various kinds of food have become popular in Chinese families. Nevertheless,there is a steady reduction of fruit and vegetables with 24 % in 1986 and a three-point drop by 1990 nonetheless,this is not the main trend.As the living standard of the Chinese people is rising,we look forward to further changes in citizens'diet.The proportion of fruit and vegetables along with milk and meat will definitely go up in the coming years.
