读“地球表面受热过程示意图”(下图),完成下面小题。
1.图中数字②表示的是( )
A.太阳辐射 | B.地面辐射 | C.大气辐射 | D.大气逆辐射 |
A.① | B.② | C.③ | D.④ |
A.① | B.② | C.③ | D.④ |
A.②减弱,④增强 | B.②减弱,③增强 |
C.③增强,④减弱 | D.②增强,③减弱 |
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