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The useful Robots
There will be many kinds of robots in the future. They will all be very useful. Dear children, do you know what they can do?
The home-help robots can tidy up a room and do the housework. Look! There is a robot at the bottom of the sea. What’s it doing? It is looking for something useful for mankind (人类). Robot policemen can control the traffic.
There is a kind of robot that can collect (收集) information from other planets (星球). Medical (医用的) robots can perform an operation (进行手术). Dear kids, do you know anything else about robots?
1．Will you see a lot of robots in the future?2．What can the home-help robots do?
3．What’s the robot at the bottom of the sea doing?
4．Where can the robots collect information?
5．What do you think of different kinds of robots?
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
