The president highlights that it is our duty and ________ our own interest to meet our historic responsibilities. ( 章节：1 难度：1)
- A、to
- B、with
- C、at
- D、in
正确答案:B
答案解析:有
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The president highlights that it is our duty and ________ our own interest to meet our historic responsibilities. ( 章节：1 难度：1)
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