What is TRUE about hoisting operations?（）

A.Personnel may work beneath suspended loads，as long as they are alert and wear hard hats

B.If a suspended load with no tag begins to spin，personnel should attempt to stop the spinning if the load is within reach

C.If tag lines are used to control a suspended load，they should be secured to the deck

D.Personnel not involved in the hoisting operation should be kept clear of the transfer area

人们在知觉事物时，具有相似性的对象易被知觉为一组，这种组织、整和的规则称为( )。

A．接近律

B．情境律

C．连续性

D．相似律