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
连线小达人。(将对话与相应的图片连线)
1. —Good morning.  —Good morning.                                                  a.
2. —Your name, please? —Daming.                                                     b.
3. —I’m fine. And how are you, Amy? —I’m fine too. Thank you.       c.
4. —How are you, Sam?  —I’m fine. Thank you.                                    d.
5. —Goodbye, boys and girls.  —Bye-bye, Mr Li.                                   e.
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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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