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| A. Where did you go then? B. Peter was ill. So I went to his home and helped him with his lessons. C. I didn’t hear you at that time. D. Oh, I don’t know. E. I didn’t like it at all, you know. |
A: What time did you come back last night, Tom?
B:
A:
B: Well, I came in quietly, I didn’t want to wake you, Mum.
A: Did you play the computer games?
B: No, Mum.
A:
B: I went to a theatre.
A: Why did come so late?
B:
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
