Is Fresh Air Really Good for You?
We all grew up hearing people tell us to “go out and get some fresh air.”
Recently, people have begun studying the connection between the natural world and healing(治愈).
A.Fresh air cleans our lungs. |
B.So what are you waiting for? |
C.Being in nature refreshes us. |
D.Another side benefit of getting fresh air is sunlight. |
E.But is fresh air really as good for you as your mother always said? |
F.Just as importantly, we tend to associate air with health care. |
G.All across the country, recovery centers have begun building Healing Gardens. |

同类型试题

y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2


y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2

