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What a busy Friday! I get up at 6:30. I eat breakfast at 7 o'clock. Then I go to school at 7:35. I have six classes a day. I do my homework at 4:30. Oh, No! So much homework! I eat dinner at 6:20. I usually go to bed at 9:10. But I will go to bed at 8:15 today. Why? Because I'm going hiking tomorrow.
Activity | Time |
6:30 | |
7:00 a.m. | |
Go to school | |
4:30 p.m. | |
6:20 p.m. | |
Go to bed (usually) | |
Go to bed (today) | |
Go | tomorrow |
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
