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Hello! I'm Li Lei. I have a new friend. He's friendly and funny. He can speak English and Chinese. He can do some kung fu. He can play ping-pong. I can play ping-pong, too. We can play together. I can swim, but he can't swim. Who is he? Can you guess? Let me tell you, he is Robin the Robot！
1．Robin can speak English.2．Robin can't play ping-pong.
3．Robin can't do any kung fu.
4．Robin can't swim.
5．Li Lei and Robin can play ping-pong together.
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
