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
对话连线
(1) What will you do for the summer holiday? a. Jenny went to a lake with my grandmother and grandfather
(2) Who did Jenny go with?                           b. Jenny will watch the ships and boats on the sea. 
(3) What will Jenny watch on the sea?          c. My family likes to go on trips in the summer
(4) What did you do last summer?                      d. She swam in the lake..
(5) What did she do last summer?            e. I went to a lake.
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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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