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Sam: Look, Amy!
Amy: Be quiet. Look at the library rules on the wall.
Sam: I see. It says, “
Amy: Why are you so excited(激动的)?
Sam:
Amy: Really? It’s great!
Sam: Yes. Last Sunday she sent me some Chinese stamps and kites.
Amy:
Sam: Sure!
Amy: OK!
| A．Don’t talk loudly(大声地) in the library. |
| B．Would you like to show them to me? |
| C．It’s a book about China! |
| D．I like China very much. |
| E．We can fly kites in the park this afternoon. |
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
