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学进去-教育应平等而普惠
试题
类型:仿写对话
难度系数:0.65
所属科目:小学英语
仿照例子,写对话。
例:your sister/three
—How old is your sister? —She’s three.
1. your friend/eight
_________________________________________________
2. your brother/ten
____________________________________________________
3. Lucy/six
_____________________________________________________
例:your bird/three
—How old is your bird? —It’s three.
4. your cat/two
_____________________________________________________
5. your dog /four
____________________________________________________
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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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