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单选题
如果温度降到-20摄氏度，拆下电瓶。
A
A.When it is unlikely that the temperature decreases to -20 ℃, remove the batteries.
B
B.If it is possible that the temperature will decrease to -20 ℃, remove the batteries.
C
C.If it is possible that the temperature will decrease to -20 ℃, cut the cells.
答案解析
正确答案：B
相关知识点：
温度到-20℃拆电瓶
