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Hello, everyone! I’m Oliver. I am eleven years old. I’m a student, this is my timetable.
| 6:00 a.m. | 6:15 a.m. | 7:00 a.m. | 8:20 a.m. | 5:00 p.m. | 6:00 p.m. | 8:30 p.m. |
| get up | do morning exercises | eat breakfast | have class | play sports | eat dinner | go to bed |
2．Oliver gets up at 6:00 p.m.
3．Oliver eats breakfast at 7:00 a.m.
4．At 5:00 p.m., Oliver plays the pipa.
5．Oliver goes to bed at 8:30 p.m.
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
