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学进去-教育应平等而普惠
试题
类型:判断题
难度系数:0.64
所属科目:小学英语
听录音,判断是否与图片或句子相符,对的打(√),错的打(×)。(10分)

(    )(6)I’d like some noodles for lunch.
(    )(7)My grandpa is kind.
(    )(8)Lily has beef and potatoes for lunch on Tuesdays.
(    )(9)Oranges are my favourite.
(    )(10)The grapes aren’t sweet.
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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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