CR:1. compound in wine affects mice longevity and health ➡️ ppl should drink some wine to improve health Weaken
B 人体吸收的红酒中的compound远少于老鼠,化合物对人体健康影响甚微。建议无效
2. watch TV 和 have a gloomy outlook的关系 评估哪个是因哪个是果 D 看电视前后人情绪的变化 但D选项又引入了看电视时长这一变量 蹲一波解析
RC:
human interventions transformed the landscape + e.g
landscape ecological shift
self reinforcement cycle desertation
soil erosion
CBBCB
DI: DBBB 如若同时考虑两个变量来决策,两个变量趋势水平不同,如何决策?
RC: C D B C B
P1: livestock production
- well-drilling
- earth-moving
P2: ecological shift
- expansion of shrubs->alter hydrology->rainfall & soil water
P3: self-reinforcing desertification
P4: overgrazing->soil damage->self-sustaining cycle of diversification
2. 这个landscape变化见证了生态系统的转变
- shrub & small tree 超出他们本身的栖息地---> overtaking large swaths of the grassland
- 这是shrub 侵蚀---->直接改变了这个区域的水文并且进一步伤害草地<-----通过替换rainfall patterns & 抢夺土壤水分