1.甲岛是世界第一大岛,它是
A.马达加斯加岛 | B.大不列颠岛 | C.冰岛 | D.格陵兰岛 |
①向北凸 ②向南凸 ③向高纬凸 ④向低纬凸
A.①② | B.②④ | C.①③ | D.③④ |
A.高 湖水影响 | B.高 纬度较低 |
C.低 海拔更高 | D.低 纬度更高 |
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