1.在黄土高原上分布着梁、峁、土石山等地形单元,体现了自然地理环境的
A.纬度地带分异规律 | B.垂直分异规律 |
C.干湿度地带分异规律 | D.地方性分异规律 |
A.亚热带常绿阔叶林带 | B.温带荒漠带 |
C.亚热带常绿硬叶林带 | D.温带落叶阔叶林带 |
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