QCC活动中选题原则不正确的是（）。

A.解决问题的经济性

B.问题本身的紧急性

C.选择尽可能大的项目去做

D.解决问题的重要层度

A person who sees someone fall overboard should（）.

A.call for help and keep the individual in sight

B.run to the radio room to send an emergency message

C.immediately jump in the water to assist the individual

D.go to the bridge for the distress flares