What happened to koala due to climate change? （ ） A.The eucalyptus leaves turn poisonous. B.The eucalyptus leaves fall off. C.The eucalyptus leaves turn yellow.
正确答案：A
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What happened to koala due to climate change? （ ） A.The eucalyptus leaves turn poisonous. B.The eucalyptus leaves fall off. C.The eucalyptus leaves turn yellow.
正确答案：A
