学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.65
所属科目:小学英语
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1. Grandma is very healthy because she___________(锻炼) every day.
2. Please speak aloud, I can___________ (几乎不) hear you.
3. We___________ (尽力) to eat a lot of vegetables to keep healthy.
4. Walking helps you to keep in good___________ (健康).
5. There are some___________ (不同) between the tiger and the cat.
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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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