以下内容是 供各位考生参考！新东方网四六级频道第一时间更新公布英语四六级真题答案。同时广大考生还可以参与线上直播，与线上老师随时互动答疑，敬请广大考生密切关注2019年12月英语四六级真题解析专题。 

　　12月四六级考试直播入口→_→猛戳

仔细阅读(第一套):

46-50:AI助手

46: B It is course designed for students to learn online.

47: C Students' questions were unsatisfied with the assistants

48: A She turned out to be a great success

49: D They could not tell her from real person

50: C Assign her to answer more of students' questions

51-55:科学筹款

51: C Not all of them achieved their anticipated goals

52: B To identify reasons for their different outcomes

53: B Its interaction with prospective donors

 54: A They should be small to be successful

 55: D Their feeling of connection to the scientists themselves

仔细阅读(第二套):

46-50:饮料征税

46: B It may encourage other US cities to follow suit

47: C Take legal action against i

48: D It criticized the measure through advertising

49: B Help people to fix certain long-time health issues

50: They are becoming rather sensitive issues

51-55:微波炉

51: D The use of microwaves emits more CO2 than people think

 52: A They are becoming more affordable

53: Improving microwave users'habits

 54: A There are far more emissions from cars than from microwaves

 55: C It plays a positives role in environmental protection

仔细阅读(第三套):

46-50教材的命运而

46: C)They can't connect professors and students as textbooks do

47: D)Falling sales

48:a)Reform its structures

49: C) Answer questions using their personal experience

50: B)They can learn in an interactive way

51-55:新型物种

51: D) gets energy from both food and sunlight

52: A)The genes it captures from the sea plant algae

53: D)They can produce chlorophyll on their own

54: C）They don't usually function inside animal cells

55: B) They can survive for months without eating

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