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Tony:
Mum: It’s 7 o’clock.
Tony: What do we have for breakfast?
Mum:
Tony: Great. I like bread.
After breakfast...
Tony: Mum, what time is it now?
Mum:
Tony: Oh! It’s time to go to school. Bye, Mum.
Mum:
| A．It’s time for breakfast. |
| B．Bye! |
| C．What time is it? |
| D．We have eggs, bread and milk. |
| E．It’s 7:30 a.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
