(1)长征被誉为“地球上的红飘带”,中央红军长征出发点位于
(2)“金沙水拍云崖暖,大渡桥横铁索寒”,金沙江奔流在山高谷深的
(3)今天重走长征路,沿途所见景观正确的是
A.高铁巨龙穿越南岭 B.四川盆地香蕉满园
C.大渡河天堑变通途 D.云贵高原沙丘连绵
(4)现在,延安山绿水清、天蓝民富,人居环境显著改善。当地生态环境整治采取的有效措施有哪些?
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