Three years ago, a society was set up to ______ the endangered animal and plant from dying out in this area.
| A．obtain |
| B．preserve |
| C．observe |
| D．deserve |
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Three years ago, a society was set up to ______ the endangered animal and plant from dying out in this area.
| A．obtain |
| B．preserve |
| C．observe |
| D．deserve |
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