题目
A.has two legs and is able to carry a person.
B.surprised visitors from Waseda University.
C.enables wheel-chair users to climb up and down stairs.
D.can transport heavy goods over uneven terrain.
第1题
They built a robot capable of ___________ spoken commands.
A、understand
B、understanding
C、understood
第6题
A.Peter is a yellow robot
B.Peter has a big yellow robot
C.Peter has a yellow robot
第8题
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