学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.65
所属科目:小学英语
将下列图片选择合适的对话相连。
(1)     
A.—Show me one blue pencil, please. —Sure.
(2)
B.—What’s this? —It’s a tiger.
(3)
C.—What colour is it? —It’s yellow.
(4)
D.The bird is red.
(5)      E. —What colour is it? —It’s black.
(6)       F. —How many are there? —Four.
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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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