There is a robot in my room. He’s only three years old. His name is Bob. I like it very much. The robot has a mouth and two ears. He can sing and talk. He can say a little English. He has two eyes. He can see with his eyes. He can hear and listen to the radio. He can walk and dance. He doesn’t have food and water. And he can’t swim. He is my good friend.
1.I have a robot in my room. (2.The robot can’t say English. (
3.The robot can see, hear, walk, swim and dance. (
4.The robot doesn’t have food and water.(
5.Bob is three. (
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