学进去-教育应平等而普惠
试题
类型:选内容补全对话
难度系数:0.65
所属科目:小学英语
Zoom: Hey, Zip. I have a new classroom.
Zip: 1.
Zoom: One blackboard, one TV, a teacher’s desk and many... Look!
Zip: Wow! It’s so big and clean. 2.
Zoom: She is my new friend.
Zip: What’s her name?
Zoom: 3.
Zip: She is tall and her hair is long.
Zoom: Yes. 4.
A.Who is the girl?
B.She is very friendly, too
C.What’s in your classroom?
D.Her name is Lily.
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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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