2020年1月3日,中央财经会议上强调要推进兰州-西宁城市群发展,发挥山东半岛城市群龙头作用;要坚持生态优先、走绿色可持续的高质量发展之路。
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(1)青海省《兰州—西宁城市群发展规划》中提出:两城市要强力推进生态共建、环境共治,深入开展图中①处的
(2)黄河是中华民族的“母亲河”,灌溉出万亩良田,其冲积而成的②处
(3)黄河也存在着很大的忧患,主要是在下游形成了“
(4)黄河中游流经黄土高原,这里土质疏松,降水集中,植被稀疏,使其成为全国
(5)我国四大地理区域中,黄河流经了
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同类型试题
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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
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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
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