Today we're going to discuss the impact of urban green spaces on mental health. A recent study conducted in Melbourne followed 1,000 residents over five years. The researchers found that people living within 300 meters of a park reported 20% lower stress levels. Interestingly, the type of green space mattered: tree-lined streets had a stronger effect than open lawns. The study also noted that even small gardens or balcony plants contributed to improved mood, but the effect was less significant. The lead author, Dr. Elena Rossi, emphasized that city planners should prioritize connecting existing parks with tree corridors.
❓ 关于不同类型绿地的效果，研究发现了什么？
A. A. 开阔的草坪比林荫街道更有效。
B. B. 绿树成荫的街道比开阔的草坪具有更大的积极影响。
C. C. 阳台植物对减轻压力的效果最为显著。
D. D. 500米范围内的公园没有可测量的影响。
✅ 正确答案
B. Tree-lined streets had a greater positive impact than open lawns.