学进去-教育应平等而普惠
试题
类型:句图匹配
难度系数:0.65
所属科目:小学英语
给下列对话选择相应的图片。
(     ) 1. --What do you like? --I like my sunglasses.                       A.
(     ) 2. --What do you do on Sundays? --I play football.            B.
(     ) 3. --What are these? --They are my shoes.                       C.
(     ) 4. --How about Sam? --He goes swimming.                       D.
(     ) 5. --Where do you live? --I live in Shanghai.                    E.
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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

用户名称
2019-09-19

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

用户名称
2019-09-19
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