题目内容
According to a study, Chinese farmers growing rice that has been genetically 1 to enhance insect resistance reduced their pesticide use by 80 percent. In addition, the genetically modified (GM) rice seed boosted crop production by almost 10 percent. There has been resistance to using GM grains as food cops-- but some think this news from China may signal an important and possibly 2 change.For the study, two types of rice were genetically altered to resist two common insect 3, which usually require heavy use of pesticides to control. During the study, the amount of pesticide used by farmers 4 because they saw less need for it.However, there are still many 5 who don't trust GM foods. They worry that there could be unexpected and possibly life-threatening 6 reactions to them in humans. Such fears and concerns 7 proven examples of problems with GM foods have been quite rare.
查看答案
搜索结果不匹配?点我反馈