单项选择题

The so-called whiskey factor refers to ______.

A．shipwrecks presenting a deadly maze to divers
B．shipwrecks holding potential accidents for divers
C．divers taking a shot of whiskey underwater
D．divers losing their senses in the course of diving

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热门试题

单项选择题

This passage is written mostly probably for those ______.

A．taking wreck diving as a sport
B．specializing in wreck research
C．focusing on shipwreck archaeology
D．interested in marine medical science

单项选择题

The difference between mountain climbing and shipwreck diving lies in ______.

A．the amount of oxygen
B．the atmospheric pressure
C．the breathing rate
D．the damaging degree of the human nervous system