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学进去-教育应平等而普惠
试题
类型:情景交际
难度系数:0.64
所属科目:小学英语
用所给词的适当形式填空,(一空一词)。 (每个空格0.5分, 共4分)
(1)A: What are you           (do), my friends?
B: We’re          (catch) insects, now. Come and          (join) us!
A: Great!
(2)A: That boy is          (talk) with a visitor. Can you see?
B: Oh, the boy can           (speak) English very well.
A: Yes, let’s go and have a look.
(3)A: How do you spend your weekends?
B: I often          (make) model ships. It’s interesting!
A: How does your sister spend her weekends?
B: I’m not sure. I think she often          (fly) her kite in the park.
A: Does she like           (fly) kites?
B: Of course.
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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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