_____ more and more scientists carrying out large-scale scientific research, the space industry will become more promising. ( 章节：1 难度：3)
- A、As
- B、Because
- C、With
- D、Since
正确答案:C
答案解析:有
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_____ more and more scientists carrying out large-scale scientific research, the space industry will become more promising. ( 章节：1 难度：3)
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