学进去-教育应平等而普惠
试题
类型:情景交际
难度系数:0.64
所属科目:小学英语
从方框中选择正确的选项补全对话。
A.OK!
B.There is a nice photo. Wow! You look cool!
C.Yes, it is. There is a TV in it.
D.Is that your bedroom?
 
E.Oh, your home is very nice.
A: Welcome to my home.
B: 1._________
A: Thank you.
B: Is this the living room?
A:2.________
B:3.________
A: Yes,you’re right. Come and look at it!
B:4._________
A: Thanks. My computer is on the desk. Let’s play!
B:5._________
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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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