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I have a robot. He has two hands, but he has no hair on his head. On his face, he has two eyes, a nose and a mouth. And he has two ears. They are big. His eyes are big, too. He has two legs and two feet. He can walk. He can speak. He can sing. And he can work for me. He is my good friend.
1．I have a robot.2．The robot has short hair on his head.
3．The robot has two small ears.
4．The robot can walk but he can't sing.
5．The robot is my good friend.
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
