1.左图所示古海岸线分布地区地势的总体变化趋势是( )
A.由东北向西南倾斜 | B.由西向东倾斜 |
C.由西北向东南倾斜 | D.由北向南倾斜 |
A.海平面间歇性下降 | B.气候持续性变暖 |
C.海滨泥沙不断淤积 | D.地壳阶段性下沉 |
A.锋面过境频繁 | B.地处迎风坡 | C.空气对流旺盛 | D.多气旋活动 |
A.海拔高度低 | B.降水少 | C.人口密度大 | D.距海远 |
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