学进去-教育应平等而普惠
试题
类型:按要求填空
难度系数:0.64
所属科目:小学英语
选出错去的一项并改正。
()(1)Iputtingitonyour bed.
A     B          改正:_____
()(2)Therewerea baseballcap.
A           B    改正:_____
()(3)Amy asked Linglingtobring some capsofthe game.
A                B        改正:____
()(4)I make lots ofmistakewith Chinesewords too.
A                    B   改正:___
()(5)Samopenedhebag.
A   B 改正:____
()(6)Then put thecapontheir heads.
A B 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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