学进去-教育应平等而普惠
试题
类型:语音选择题
难度系数:0.85
所属科目:小学英语
选出每组单词与例句画线部分发音相同的一项。
1.The pen is on the desk. (       )
A.yellowB.me
2.Mike likes his toy bike. (       )
A.kidB.fire
3.A pig is playing with a stick. (       )
A.sitB.nine
4.The cake is on the table. (       )
A.sadB.name
5.He and she are good friends. (       )
A.ChineseB.help
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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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