【正确答案】From the table we can come to the conclusion that since 1978, China's total volume of foreign trade has increased much faster than that before 1978. During the 28 years before 1978, the total volume of foreign trade had increased 8.5 times, but within the 7 years from 1978 to 1985, the total volume had increased 5.8 times. The main reason for the rapid increase is the practice of Reform and Open Policy to the outside world. It effectively stimulates the development of Chinese economy and industry. However, the data from the table also indicate that we always import more than export. This is because we are less experienced in foreign trade in" the new situation and we need to improve our products to compete successfully in the international market. To change the situation, we not only should improve the quality of our products, but also should employ advanced techniques. Only in this way can we balance import and export to promote our economy.