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
用单词适当形式填空
1. I _______ (have) a brother. He _____ (be)six. He ______ (have)a toy bear.
2. _______ (be)she fat? -No. But her sister and brother(be) ________ fat.
3. This is ______ (a) umbrella. That is _____(a) big ant.
4. What are they? They are _______(branch).
5. Do you ____(like) cola? Yes, I ______(do). My father _____(like) cola too.
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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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