“During a recent trial period in which government inspections at selected meat-processing plants were more frequent, the amount of bacteria in samples of processed chicken decreased by 50 percent on average from the previous year’s level. If the government were to institute more frequent inspections, the incidence of stomach and intestinal infections throughout the country could thus be cut in half. In the meantime, consumers of Excel Meats should be safe from infection because Excel’s main processing plant has shown more improvement in eliminating bacterial contamination than any other plant cited in the government report.”
这题里，一个结论是 If the government were to institute more frequent inspections, the incidence of stomach and intestinal infections throughout the country could thus be cut in half. 另一个是consumers of Excel Meats should be safe from infection，前后没有什么关系嘛。这是当做两个结论来攻还是找出一个主要结论，另外一个作为副结论。