不准在车间打闹，不准随意攀登吊车、墙梯或者其它设备，不准在吊车吊运物体运行线上行走或停留。
参考答案：对
Dogs have a very good _________ of smell and are often used to search for survivors in an earthquake. [ ]
A. sense
B. view
C. means
D. idea
