A到B不一定隻有一條。你洗衣房和廁所是分開的嗎?如果洗衣房和廁所在房子的兩頭,一般不SHARE一條管子。
據說連到STREET的口一般隻有一個,也就是說,隻有一個B,但是
所有跟帖:
• 謝謝。我就是懷疑有兩條管平行從A連到B -玉筷子- ♀ (0 bytes) () 05/03/2010 postreply 14:55:38
• 謝謝。我就是懷疑有兩條管平行從A連到B -玉筷子- ♀ (0 bytes) () 05/03/2010 postreply 14:55:38
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