植物保护 - 2026 进行中

科目: 植物保护
级别: III
类别: 大学生
测试题目: 英语
问题示例: Which example best represents biological control in an integrated plant-protection programme? Applying a synthetic herbicide to a weed-infested field, Removing diseased leaves by hand, Installing a plastic barrier around a greenhouse, Releasing a predatory mite against a pest mite