【判断题】“浮地”,即该电路的地与大地无导体连接。()
【判断题】动物园饲养的动物致人损害时,动物园承担过错推定责任。()
【判断题】叶的表皮细胞具有气孔,茎的表皮细胞中没有气孔。
【单选题】For me and my other classmates, trying to fathom what happened to our old school friend, we may never know if we really would grow up with a future terrorist.
【简答题】The meaning of “fathom”(in the text) is ____.