搜索
Lingling: I am going to do a science project.
Amy: Let’s go to the school library.
Lingling:
Amy and Lingling go to the library.
Lingling: Excuse me.
Librarian: They are on Shelf D.
Lingling: I think these books are really nice.
Librarian: And there is also a CD about science.
Lingling:
Librarian: Can I have your library card, please?
Lingling: Of course. Here you are.
Librarian:
| A．Great. Let me borrow(借) it. |
| B．I want to find information from books. |
| C．Where are the books about science, please? |
| D．Thank you. |
| E．That’s a good idea. |
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
