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| 7:00am | get up | 2:30pm | music class |
| 7:30am | go to school | 4:30pm | go home |
| 8:30am | Chinese class | 9:00pm | go to bed |
[[QOrDeR]]It’s 7:00 am. It’s time to
.【小题2】It’s 7:30 am. It’s time to
.【小题3】It’s 4:30 pm. It’s time to
.【小题4】It’s 9:00 pm. It’s time to
.
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
