搜索
Amy is in China. She is at home with Daming’s family.
Daming: Mum, what are you doing?
Mum:
Amy: Dumplings?
Daming: They are our traditional(传统的) food.
Mum: Do you want some dumplings, Amy?
Amy:
Mum: Here are dumplings with meat and dumplings with tomato and egg. What do you want?
Amy:
| A．What are they? |
| B．Yes, please. |
| C．I’m making dumplings. |
| D．Dumplings with meat. |
| E．We all like them. |
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
