(1)剖面线上,东、西部年平均降水量的差异是_______ ,其主要影响因素有______、______。(3分)
(2)剖面线上,长江中下游平原与四川盆地相比,年太阳总辐射量较低的是_______ ,原因有_______________。(3分)
(3)长江中下游平原主要农业地域类型是______________ ,发展该农业的有利社会经济条件有__________________ 。(4分)
(4)你认为拉萨河谷地种植水稻是否可行?______,理由是_________________ 。(3分)
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