学进去-教育应平等而普惠
试题
类型:对划线部分提问
难度系数:0.65
所属科目:小学英语
句型转换。
1.Are there any old pockets on the shirt? (改为单数句)
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2.The blue button is one yuan. (对划线部分提问)
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3.I can make a paper cup. (改成一般疑问句)
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4.My friend and I play badminton once a week. (对划线部分提问)
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5.Jill and Kitty like walking in the school garden. (根据划线提问)  
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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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