学进去-教育应平等而普惠
试题
类型:句子匹配
难度系数:0.65
所属科目:小学英语
在II栏中找出I栏的答句。

I                                                                                     II


(          )1.Hi, Sam.                                           A. Hi, I’m Liu Tao.
(          )2.Hello! Are you Liu Tao?                B. Good afternoon, Wang Bing.
(          )3.Goodbye, Miss Li.                          C.Goodbye, Mike.
(          )4.Good afternoon, Su Hai.                    D.Yes, I am.   
(          )5.Hi, I’m David.                                     E.Hi, Bobby.
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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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