学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.65
所属科目:小学英语
匹配。
(______)1.Whose sweater is it?       

A.No,it isn’t.
(______)2.Look at my shirt.

B.It’s Mike’s.
(______)3. Whose jeans are they?

C.They’re my father’s.
(______)4.Is it Liu Tao’s?

D.My hand hurts.
(______)5. What’s the matter?

E.How nice!

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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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