[单选题] A pumproom is suspected of accumulating gases
after a ventilation machinery breakdown．Where should the
combustible gas indicator
Case be placed when testing the pumproom atmosphere
for combustible gases ________．
A.In the lower level of the pumproom
B.In the middle level of the pumproom
C.In the upper level of the pumproom
D.On the deck outside the pumproom

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[单选题] Access to a cargo pumproom on a tank vessel carrying grades
A，B，C or D liquid cargoes shall be ______．
A.At least 13.1 feet away from the galleys，living quarters or navigation spaces
B.From the open deck
C.Only from areas equipped with power ventilation systems
D.Isolated from any part of the vessel which normally contains sources of vapor ignition

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[单选题] The FIRST treatment of a person suspected of having airway burns is to ______．
A.Move him to a cool location
B.Maintain an open airway
C.Apply a cool damp dressing to his neck
D.Have him drink cool liquids

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[单选题] When a patient is suspected of having appendicitis，the pain should be relieved by ______．
A.Keeping an ice bag over the appendix area
B.Giving the patient a laxative
C.Giving the patient morphine sulfate
D.Giving the patient aspirin with a glass of water

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