世界认知 - 2026 进行中

科目: 世界认知
级别: VII (I级最简单，XII级最难)
类别: 大学生
试题语言: English
题数: 15
问题示例: What is the primary purpose of vaccination? To cure every existing infection immediately, To train the immune system to recognize a specific disease, To increase the body's need for oxygen, To replace damaged bones with new tissue