：‍ ‏3. What encouraged a growing number of scientists to go on with the research in AI is _____. ‏‍ ‏A: that they could obtain funding easily B: that they could see the advantages of continuing the research C: that they could gain both fame and wealth from doing the research D: that they could become the pioneers in this field 答案: that they could see the advantages of continuing the research 4、