單項(xiàng)選擇題When administering artificial respiration to an adult, the breathing cycle should be repeated about （）

A.12 to 15 times per minute
B.18 to 20 times per minute
C.20 to 25 times per minute
D.as fast as possible


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1.單項(xiàng)選擇題When administering artificial respiration, it is of the utmost important to （）

A.use the mouth-to-mouth method
B.clear airways
C.use rhythmic pressure method
D.know all approved methods

2.單項(xiàng)選擇題Safety is dependent on orderliness and cleanlinessOrder may be maintained by （）

A.storing all items in an assigned place
B.storing all items in a common storage container except those ready-for-sea
C.tagging all items according to their age and then storing them together
D.disposing of worn-out items

3.單項(xiàng)選擇題To safeguard the operator and other personnel working on or near a hoisting operation which of the following precautions should be observed?（）

A.Keep a load on the hoist until all personnel are finished working
B.Set the load on a movable dolly when transportation may be needed
C.Have one man keep a hand on the load to steady it
D.Insure that the lifting gear capacity is not exceeded

4.單項(xiàng)選擇題Which of the actions listed and instituted on your part will have the greatest lasting effect on the crew with respect to safety?（）

A.Posting posters illustrating practices
B.Showing video tapes of actual accidents
C.Incorporating safety practices in daily routine
D.Publishing comprehensive safety rules

5.單項(xiàng)選擇題Which of the listed conditions can be considered as the single greatest cause of accidents?（）

A.Speed
B.Excessive knowledge or skill
C.Human error
D.Excitement