题目内容：
第53题应选：
A．runners B．exercises
C．patients
D．cases
参考答案：
答案解析：
单选题：第53题应选：
- 题目分类：理工类
- 题目类型：单选题
- 查看权限：VIP
B．exercises
C．patients
D．cases
B．exercises
C．patients
D．cases
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Paragraph 3 __________ ~
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To absorb a younger work force, many companies offered reti
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请在第__(63)__处填上正确答案。
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