学进去-教育应平等而普惠
试题
类型:电子邮件
难度系数:0.40
所属科目:初中英语
假设你叫 Paul,你认识了一位新朋友Mike,请你根据下面Mike的个人资料写一封电子邮件,把他介绍给你的朋友Jack。
ID Card
First name: Mike
Last name: Green
Age: 13
Telephone number: 82137669
Class: 8
Grade: 7
Family member: father, mother, brother
要求:
1. 必须包含表格内的所有信息。
2. 可适当补充信息(词数60左右)。
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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

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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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