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(It’s 5 p.m. on Saturday.)
A:
B: Yes, I have many classes today.
A: What do you have today?
B:
A: I often play with Robin. He is a robot.
B:
A: He is very helpful and clever.
B: Is he funny?
A:
B: Wow, that’s nice!
| A．A robot? Cool! What’s he like? |
| B．What do you do on the weekend? |
| C．Hello, Alex. You look tired today. |
| D．Yes, he is. |
| E．I have a maths class and a reading class in the morning. |
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
