搜索
B: Guess, please.
A: Is it a photo?
B: Yes, it is. It’s a photo of my family.
A: Really?
B: There are three. They are my father, my mother and me.
A:
B:
A: Oh, is your mother a doctor, too?
B:
A: Wow, she looks quiet and friendly.
B: Thank you.
| A．Your father is tall and strong. |
| B．How many people are there in your family? |
| C．No, she isn’t. |
| D．He’s a doctor. |
| E．What’s in your hand? |
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
