题文
The development of the city's industry __________ its environment pollution.
| A．has added up |
| B．has added to |
| C．has added up to |
| D．was added to |
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The development of the city's industry __________ its environment pollution.
| A．has added up |
| B．has added to |
| C．has added up to |
| D．was added to |
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