A.2i B.2i+1 C.2i+2 D.2i-1
A.5 B.6 C.7 D.8
A.兄弟結(jié)點(diǎn) B.父結(jié)點(diǎn) C.左子結(jié)點(diǎn)和右子結(jié)點(diǎn) D.左子結(jié)點(diǎn)、右子結(jié)點(diǎn)和兄弟結(jié)點(diǎn)