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学进去-教育应平等而普惠
试题
类型:选内容补全对话
难度系数:0.40
所属科目:小学英语
选择恰当的句子,补全对话。
A. Does he often go fishing?
B. Is he your grandpa?
C. What's his hobby?
D. Do you want to know anything about him?
E. He feeds chickens, ducks and geese.
A: 1.
B: Yes, he is. 2.
A: Yes, of course. 3.
B: His hobby is planting vegetables and feeding animals.
A: What animals does he feed?
B: 4.
A: 5.
B: Yes, he does.
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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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