To deal with the problem of water shortages. water?saving technology will be introduced to new industrial projects in Beijing and Shanghai.A. advancing B. advancedC. advance D. advances 题目和参考答案——青夏教育精英家教网—

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To deal with the problem of water shortages，______ water?saving technology will be introduced to new industrial projects in Beijing and Shanghai.

A. advancing B. advanced

C. advance D. advances

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