In what way can you enter scenic spots without a paper ticket?
Asking a friend for help.
B. Slipping into the spot.
C. Having your fingerprint read.
Drawing a ticket.
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What can be performed by an AI doctor or AI-based system?
A. Giving diagnoses, interpreting imaging and performing surgery.
B. Sending a patient to other hospitals.
Creating new medicine for patients.
Deciding the vehicles that patients should take.
What did the first automated car use to track street markers?
A. Global Position System
B. Cameras and analog computer
C. BeiDou Navigation Satellite System
D. Facial Recognition
What can't be done by a driverless delivery vehicle?
A. Clean the road.
B. Obey traffic lights.
C. Avoid barriers on roads.
D. Send messages to tell the customers.
泥浆护壁成孔灌注桩的护筒一般采用4~8mm厚钢板制作，其内径比钻头直径大（），上部宜开1~2个溢浆口。
A. 50mm
B. 100mm
C. 150mm
D. 200mm
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