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
选择正确的答句。
(  )1.Whose book is it?
(  )2.What is it ?
(  )3.Where are you from?
(  )4.Is that your house?
(  )5.What is it about?
(  )6.Is he your brother?
A.No, he isn’t.
B.It is Amy’s book.
C.I'm from UK.
D.It is about China.
 
E.It's Big Ben.
F.No,it’s the Queen’s house。
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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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