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Betty: Hi, Jack. This is Betty.
How was your weekend?
Jack: Not very good. I stayed at home.
Betty: I’m sorry to hear that.
Jack: Yes, thanks. I’m much better now. How about your weekend?
Betty: It was busy.
Jack: Sure.
Betty: We will go boating, feed ducks, play games and so on.
Jack: Sounds great! I like boating and playing games. And
Betty: OK. See you at the Willow Nature Park gate on Saturday morning.
Jack: See you.
| A．I did a lot of housework at home. |
| B．I had a cold last weekend. |
| C．Are you feeling better now? |
| D．I’ll take some pictures there. |
| E．What will we do in the park? |
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
