共阳极的数码管输入信号的有效电平是电平，共阳极的数码管输入信号的有效电平是电平
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Choose the best answer to each of the following questions according to Text A.The AI refers to the intelligence demonstrated _______________.
A. by humans
B. by Internet
C. by environment
D. by machines
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.
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
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