学进去-教育应平等而普惠
试题
类型:匹配题
难度系数:0.64
所属科目:小学英语
为下列句子选出合适的答语。
( )1. What do you want?
( )1. Whose things are they?
( )1. Can I have the blue one??
( )4. Do you have a cap?
( )5. What are you doing?
A.I’m selling things.
B.Yes ,I do.
C.They are my things.
D.I want a purse.
 
E.Here you are.
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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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