下图示意我国汉江流域沉积作用明显区。据此完成下面小题。
1.图中阴影区沉积作用主要是( )
A.冰川沉积 | B.海水沉积 | C.风力沉积 | D.流水沉积 |
A.流速:R1大 流量:R2大 | B.流速:R1大 流量:R2小 |
C.流速:R1小 流量:R2大 | D.流速:R1小 流量:R2小 |
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