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T: May I come in?
M: Yes, please.
T: I'm sorry I'm late.
M:
T: Because the bus was late.
M: I see. That's all right. Go to your seat and sit down, please.
T: Yes. Miss Li.
J: Miss Li, Tom is talking all the time.
M:
T: OK, Miss Li.
(It's break now.）
T: Where are Tom and Dongdong?
J: They are in the classroom.
T: What are they doing?
J:
T:
J: OK
| A．They are playing football. |
| B．Don't be late next time. |
| C．Don't talk. |
| D．Why are you late? |
| E．Don't play football in the classroom. |
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
