读“东南亚部分地区略图”(下图),完成下面小题。
1.中南半岛是世界著名的稻米产区,图示水稻种植区域,种植水稻的优越条件有( )①雨热同期②地形平坦③土壤肥沃④地广人稀
A.②③④ | B.①③④ | C.①②③ | D.①②④ |
A.小麦、茶叶 | B.苹果、柑橘 | C.哈密瓜、棉花 | D.椰子、天然橡胶 |
A. | B. |
C. | D. |
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