学进去-教育应平等而普惠
试题
类型:句子匹配
难度系数:0.85
所属科目:小学英语
给下列问句选择正确的答语。
( ) 1.What colour is the bag?        A. No, they aren’t.
( ) 2. Where is the T-shirt?        B. Yes, it is.
( ) 3. Are they pants?        C. It’s Zhang Peng’s.
( ) 4.Whose coat is that?        D. It’s pink.
( ) 5. Is this your skirt?        E. It’s on the bed.
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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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