题目内容：
The word “they” underlined in Paragraph 2 refers to __________． 
参考答案：
答案解析：
单选题：The word “they” underlined in Paragraph 2 refers to ________
- 题目分类：2级
- 题目类型：单选题
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Which of the following can be inferred about Russia?
Which of the following can be inferred about Russia?
Evidence came up which specific speech sounds are recognized
Evidence came up which specific speech sounds are recognized by babies as young
The progress of civilization itself Can be measured by its r
The progress of civilization itself Can be measured by its range of mathematics．
Soon comics were so prevalent as to attract the attention of
Soon comics were so prevalent as to attract the attention of serious critics．
Problems caused by__________ nationality have to be properly
Problems caused by__________ nationality have to be properly coped with．