学进去-教育应平等而普惠
试题
类型:阅读选择
难度系数:0.64
所属科目:小学英语
阅读对话,回答问题。
Sarah: Hello. Miss White.
Miss White: Hi, Sarah. How is everybody doing?
Sarah: Just fine. Amy is reading a comic book. Zhang Peng is cleaning the windows. Mike is sweeping the floor. Chen Jie is drawing a picture....
Miss White: Cool. Everyone is busy.
(1)Who is drawing a picture?
_________________________________________________________________
(2)What is Amy doing?
_________________________________________________________________
(3)Is Zhang Peng sweeping the floor?
_________________________________________________________________
(4)What is Mike doing?
_________________________________________________________________
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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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