1.图示区域内年降水量的空间分布规律是( )
A.由东向西逐渐减少 | B.由西南向东北逐渐减少 |
C.由西向东逐渐减少 | D.由东南向西北逐渐减少 |
A.环境问题:沙漠化、水土流失、水体污染 |
B.地势:第一级阶梯、第二级阶梯、第三级阶梯 |
C.粮食作物:青稞、小麦、水稻 |
D.植被:热带雨林、温带落叶阔叶林、亚热带常绿阔叶林 |
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