学进去-教育应平等而普惠
试题
类型:连线题
难度系数:0.85
所属科目:小学英语
读一读,将问句和答语连线。
1.What year is it?                                      a.My favorite holiday is Children’s Day.
2.What’s your favorite holiday?                b.It’s on January first.
3.How will you go to Xi’an?                     c.It’s the year of the ox.
4.What do you need for lunch?                 d.I need some vegetables.
5.When is New Year’s Day?                      e.I will go there by plane.
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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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