下图为世界局部区域洋流分布示意图。完成下面小题。
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1.洋流( )
A.①②均是暖流 | B.①②均是寒流 |
C.①是寒流,②是暖流 | D.①是暖流,②是寒流 |
A.甲海域存在大型渔场 | B.乙群岛出现荒漠景观 |
C.丙沿岸冬季降温明显 | D.丁海域地热资源丰富 |
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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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