学进去-教育应平等而普惠
试题
类型:中英文匹配
难度系数:0.85
所属科目:小学英语
A. 在家看书        B. 看来好像          C. 骑车             D. 飞走          E. 当心
F. 去野餐             G. 请慢用             H. 起床             I. 热狗          J. 吃午餐

1.be careful (      )
2.look like (      )
3.have a picnic (      )
4.ride a bike (      )
5.fly away (      )
6.get up (      )
7.enjoy your meal (      )
8.have lunch (      )
9.hot dog (      )
10.read a book at home (      )
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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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