1.我国800mm年平均等降水量线大致通过图中山脉甲,该山脉是()
A.昆仑山 | B.天山 |
C.武夷山 | D.秦岭 |
A.华北平原 | B.东北平原 |
C.云贵高原 | D.内蒙古高原 |
A.北京四合院 | B.陕北窑洞 |
C.福建土楼 | D.内蒙古蒙古包 |
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