学进去-教育应平等而普惠
试题
类型:听音判断
难度系数:0.85
所属科目:小学英语
听录音,判断下列句子与所听内容是否相符,相符的用“ ”表示,不相符的用“ ”表示。
1. Dad's mobile phone is beside the telephone.  
2. Mike visited the Great Wall in Beijing.  
3. Liu Tao was at home yesterday.   
4. It is 21st November today.  
5. Tom's birthday present is a magic box. 
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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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