学进去-教育应平等而普惠
试题
类型:填空题
难度系数:0.64
所属科目:小学英语
找出句子中错误的一项并改正。
( )(1)What are this?
A   B  C                       改正___________.
( )(2)Itisanpear .
A B C                             改正__________.
( )(3)Can mehaveone ?
A  B   C                        改正__________.
( )(4)Wewillbuyoneata shop .
A      B     C                   改正__________.
( )(5)Ifind anfat fish .
A B  C                            改正___________.
( )(6)Whopear isthis ?
A       B  C                     改正___________.
( )(7)I willbuy it to you .
A B       C                       改正____________.
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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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