学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.64
所属科目:小学英语
你会买东西吗?补全短文。(16分)
A:__(1)__I  help you?
B:__(2)__, please. I'd like a cake.
A:What__(3)__would you like?
B:I'd like that  round__(4)__.
A.shapeB.Can
C.oneD.Yes
(1)________ (2)________ (3)________  (4)________
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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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