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Susan and Cathy are talking on the phone.
Susan: Hello, Cathy. This is Susan. Let's go to Xinhua Bookstore.
Cathy: OK.
Susan: I'm going to buy a book about dinosaurs.
Cathy: That's interesting.
Susan: Yes, I do. I read 5 books last night. What did you do?
Cathy: Oh,
Susan: Are you all right now?
Cathy:
Susan:
Cathy: Sounds great. See you then.
| A．I had a cold and slept all night. |
| B．We can go by bike. |
| C．What are you going to buy? |
| D．I'm OK now. |
| E．What are you doing now? |
| F．Do you often read books? |
| G．I went there by bus. |
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
