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
选择正确的单词填空。
1. Autumn ________ (is/it's) my favourite(最喜爱的) season.
2. In spring, it's ________ (hot/warm).
3. In summer, it's ________. (hot/warm)
4. I like ________. (skate/skating)
5. I ________ (skate/skating) after school.
6. Bobby ________(have/has) a big egg.
7. Sam and Bobby ________(have/has) some big eggs.
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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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