[A] chance[B] look[C] measure[D] choice

A．Worry about his family.B．Cheek locks.C．Look after children.D．Have a look round.

The new measure will reduce the chance of serious injury in the event of an accident. The

（2012)Chance骨折是指胸腰椎A、单纯性压缩骨折B、骨折--脱位C、屈曲--牵拉性损伤D、稳定性爆破型骨折

_________[A] by chance [B] in contrast [C] as usual [D] for instance

_________(61)A.reason B.chance C.opportunity D.fa

52._________A.often B.look C.sometimes D.seem