Animals do different amazing things to __________ low temperatures when winter comes. Some head for warmer places, while others put on a thick coat of fur.
| A．treat | B．prevent |
| C．survive | D．simplify |
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Animals do different amazing things to __________ low temperatures when winter comes. Some head for warmer places, while others put on a thick coat of fur.
| A．treat | B．prevent |
| C．survive | D．simplify |
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