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Jack: Hello, this is Jack!
Zhang Peng : This is Zhang Peng.
Jack: l am sorry. He is busy now. Please hold on.
Zhang Peng:
Jack: He is writing an e-mail. He is coming.
Zhang Peng: Hi, John!
John: l go to the playground at 7 :00 in the morning.
Zhang Peng: lt is early.
John: l get up at 6 :00.
Zhang Peng : Shall we meet at 6 :50 at school?
John:
| A．Can I speak to John?B: When do you go to the playground? | B．What is John doing? |
| C．OK. See you tomorrow morning. | D．When do you get up? |
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
