蓄电池有闸门可以先关上. 但有危险，我不敢告诉你。

来源: 周老大于 2011-02-06 08:11:53 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.