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B:
A: Why?
B: For my school trip this weekend.
A: Really ?
B: We are going for a summer picnic in Yuanshuai Forest.
A:
B: Our school bus will take us there.
A:
B: Yes, once a year. We all like it very much.
A: So nice!
B: Thank you.
| A．Have a good trip. |
| B．Sounds interesting. |
| C．Where are you going ? |
| D．I was doing my homework. |
| E．How often do you have a trip ? |
| F．Do you have a trip every year ? |
| G．I was buying food in the supermarket. |
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
