题文
Whether the buildings in this area should be pulled down has remained ________; people are still looking for other possible solutions.
| A．unchallenged |
| B．relevant |
| C．controversial |
| D．contradictory |
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Whether the buildings in this area should be pulled down has remained ________; people are still looking for other possible solutions.
| A．unchallenged |
| B．relevant |
| C．controversial |
| D．contradictory |
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