2018年6月四六级真题答案※ 微信对答案 ※ 万题库估分

　　Passage1

　　46. C store an unlimited number of human faces.

　　47. C To understand computers' problems with facial-recognition software.

　　48. D It decreases as the database size increases.

　　49. A They cannot easily tell apart people with near-identical appearances.

　　50. B There do not exist public databases with sufficient face samples.

　　Passage2

　　51. B They are acting in an irrational way.

　　52. A impractical

　　53. C Choose majors that will serve society's practical needs.

　　54. C It is well reflected in their average starting salary.

　　55. D College students should fund their own education.

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