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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
从框中选出下列句子的相应答语, 把编号填在括号里。
A.Oh, how nice!
B.  Great!
C.  I have 20.
D.  I can see three lions.
 
E.  1, 2, 3, …I can see 14.
(  )1.Let’s fly a kite!
(  )2.How many apple can you see?
(  )3.How many lions in the zoo?
(  )4.How many eggs do you have?
(  )5.Look at my new pen!
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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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