读《我国沿32ºN我国地形剖面图》,据图完成下面小题。
1.图中甲、乙地形区分别是( )
A.青藏高原和云贵高原 | B.云贵高原和四川盆地 |
C.青藏高原和四川盆地 | D.黄土高原和华北平原 |
①山区面积广大 ②地势西高东低 ③地形种类多样 ④东部濒临海洋
A.①② | B.①④ | C.②③ | D.③④ |
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