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Dongdong: I will go to the bookshop.
Lingling:
Dongdong: I will buy some books about arts.
Lingling: Arts?
Dongdong: Yes, but sometimes it’s difficult.
Lingling:
Dongdong: I will be an artist (画家).
Lingling: Wow!
| A．What kind of books will you buy? |
| B．Is it interesting? |
| C．What will you do when you grow up? |
| D．What will you do tomorrow? |
| E．So cool! |
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
