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学进去-教育应平等而普惠
试题
类型:判断句子和图片是否相符
难度系数:0.65
所属科目:小学英语
读句子,请把与图相符的句子的大写字母编号写在相应的括号内。
A. Don’t talk with others when your mouth is full of food.
B. Please don’t cross the road when the traffic light is red.
C. The blue whale is the biggest animal in the world, but it’s in danger.
D. The koala is a lovely animal in Australia .It looks like a small bear.
E. It is a story about a crow and a fox.
1. (     )
2. (     )
3. (     )
4.    (     )
5. (     )
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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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