2019年12月英语四级真题及谜底(卷一)：选词填空

　　26:b admiring

　　27:M sealed

　　28:I natural

　　29:c contains

　　30:K released

　　31:L revealing

　　32:O substance

　　33:G liquid

　　34:E evidence

　　35:J potential

　　2019年12月英语四级真题及谜底(卷一)：信息匹配

　　36:E 段落选一句： USPS has sophisticated emergenc

　　37：Ⅰ段落选一句： Mail companies are logistics

　　38:C 段落选一句： As global surface temperatures in

　　39∶G 段落选一句： Every day， USPS processes， on a

　　40:K 段落选一句： Rebuilding can take a long time

　　41:F 段落选一句： As soon as it‘ s safe enough to b

　　42:B 段落选一句： Even the united states postal

　　43:J 段落选一句： Private courier companies， wh

　　44:D 段落选一句： Days after the deadly2017 wild

　　45:H 段落选一句： It can be hard to identify which parcels are carrying crucial items

　　2019年12月英语四级真题及谜底(卷一)：仔细阅读

　　卷一46-50:AI助手

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

　　47： CStudents’questions were unsatisfied weith the assistants48： A She turned out to be a great success

　　49： D They could not tell her from a 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 Thcir fccling of conncction to the scientists themsclves