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Even today a water engineering project is still hard to build because _______.


A、it takes time
B、it needs to be tackled with skill
C、It will damage the natural environment
D、a lot of efforts are needed.

发布时间:2024-12-12 21:52:48
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答案:it takes time ■it needs to be tackled with skill ■a lot of efforts are needed.
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