学进去-教育应平等而普惠
试题
类型:填内容补全对话
难度系数:0.65
所属科目:小学英语
根据课文,填空。
Mum: Look, Amy. Some 1. ________ children came to 2. ________ last week.
Amy: Did they come for the 3. ________ competition?
Mum: Yes, they4. ________. Look, this girl 5. ________ the gold cup.
Amy: What did she play?
Mum: She played the 6. ________ .
Amy: I can play the flute, too.
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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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