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Laura:
Lily: Let me help you.
Laura: Thank you.
Lily:
Laura: No, he doesn't.
Lily: Do you often tidy your bed?
Laura:
Lily: Well. Do you often tidy your desk?
Laura: Yes, I do. Look! It's very tidy.
Lily: Sometimes. My mum often helps me tidy my desk.
| A．Of course. |
| B．I always tidy my bed. |
| C．I'm tidying Tim's bed. |
| D．How about you? |
| E．But I think he can do it well later. |
| F．Does he ever tidy his bed? |
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
