Good Hobbies, Happy Children
Name | Taking photos | Reading | Playing the violin | Singing | Painting | Playing chess |
Tim | √ | √ | ||||
Anne | √ | √ | ||||
John | √ | √ | ||||
Mary | √ | √ | ||||
Dongdong | √ | √ |
2.Anne doesn’t like playing the violin.
3.John and Dongdong like painting.
4.Mary and Anne like taking photos and singing.
5.Dongdong’s hobbies are reading and playing chess.

同类型试题

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


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

