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John: Hello, Mark. This is John.
Mark: I'm in New York.
John: What time is it there?
Mark:
John: It's 10: 40 p.m.
Mark:
John: Goodbye, Mark.
(It's 8:00 a.m. in New York. )
Mark's mum: Hurry up, Mark. It's time to go to school.
Mark:
Mark's mum: It's 8:00.
Mark: OK.
| A．It's 7:40 a.m. |
| B．Our breakfast is ready. |
| C．Where are you now? |
| D．It's time to go to bed here. |
| E．What time is it? |
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
