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| A. Let's play together. B. It's a robot. C. Can I swim with the robot? D. It can walk and talk. E. I'll play basketball. |
A: What's this?
B: 1.
A: What can it do?
B: 2.
A: Wow! It's cool!
B: I'll go swimming next Monday. 3.
A: No, it can't swim.
B: What will you do next Monday?
A: 4.
B: Oh, I have a basketball.
A: 5.
B: And the robot!
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
