According to the speaker, which group of people makes up of the majority of the illiterate population?
听前猜测四个选项分别表示某个群体，故推测本题考查的内容和群体相关。
Illiterate and semi-illiterate population in this table refers to the population aged 15 and over, who are unable or very difficult to read.
注：本表“文盲、半文盲人口”指15岁及15岁以上不识字及识字很少人口。
A large percentage of the population is illiterate.
人口中文盲的比例相当高。
The greatest part of the population was illiterate.
这些人中的绝大多数是不识字的。
At the beginning of the establishment of new China, 600000000 of the country's population, 80% are illiterate.
新中国成立伊始，全国6亿人口有八成是文盲。
At the beginning of the establishment of new China, 600000000 of the country's population, 80% are illiterate.
新中国成立伊始，全国6亿人口有八成是文盲。
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