為什麽要AC,而不是DC,...電池裏的電好像是DC?

來源: thornbird888 於 2013-09-21 05:23:02 [舊帖] [給我悄悄話] 本文已被閱讀：次

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