() the number in full-time employment fell by 2 million, the number of people in part-time work doubled to over 4 million. ( 章节：1 难度：1)
- A、Unless
- B、Until
- C、While
- D、Since
正确答案:C
答案解析:有
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() the number in full-time employment fell by 2 million, the number of people in part-time work doubled to over 4 million. ( 章节：1 难度：1)
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