Professor Ashok Goel of Georgia Tech developed an artificially intelligent teaching assistant to help handle the enormous number of student questions in the online class, Knowledge-Based Artificial Intelligence. This online course is a core requirement of Georgia Tech's online Master of Science in Computer Science program. Professor Goel already had eight teaching assistants, but that wasn't enough to deal with the overwhelming number of daily questions from students.

Goel and his team developed several versions of a virtual assistant named Jill Watson before releasing her to the online forums. At first, the virtual assistant wasn't too great. Then they began to feed Jill with the questions and answers. After some adjustments and sufficient time, Jill was able to answer the students' questions correctly 97% of the time. The virtual assistant became so advanced and realistic that the students didn't know she was a computer. The students, who were studying artificial intelligence, were interacting with the virtual assistant and couldn't tell it apart from a real human being. Goel didn't inform them about Jill's true identity until April 26. The students were actually very positive about the experience.

The goal of Professor Goel's virtual assistant next year is to take over answering 40% of all the questions posed by students on the online forum. The name Jill Watson will, of course, change to something else next semester. Professor Goel has a much rosier outlook on the future of artificial intelligence than, say, Elon Musk, Stephen Hawking, Bill Gates or Steve Wozniak.

【小题1】What do we learn about Knowledge-Based Artificial Intelligence?

A．It is a robot that can answer students' questions.

B．It is a computer program that aids student learning.

C．It is a course designed for students to learn online.

D．It is a high-tech device that revolutionizes teaching.

【小题2】Which of the following statements is TRUE about Jill Watson?

A．She was released online as an experiment.

B．She got along pretty well with students.

C．She was unwelcome to students at first.

D．She turned out to be a great success.

【小题3】How did the students feel about Jill Watson?

A．They thought she was a bit too artificial.

B．They could not tell her from a real person.

C．They could not but admire her knowledge.

D．They found her not as capable as expected.

【小题4】What does Professor Goel plan to do next with Jill Watson?

A．Launch different versions of her online.

B．Feed her with new questions and answers.

C．Assign her to answer more of students' questions.

D．Encourage students to interact with her more freely.