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(1)在“笔记”的空格处填入适当的内容,帮助小南同学完善俄罗斯“欧洲部分”和“亚洲部分”的地理特征描述。
(2)小南在整理俄罗斯笔记时发现:⑨、⑩两条特征与“亚洲部分”第______条特征相关。
(3)中国与俄罗斯贸易往来频繁。请帮助小南将下列表示货物的数码填入下表。
①纺织品及原料②铁矿石③鞋靴、伞等轻工业产品④木材及制品
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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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