An aneroid barometer on a boat should always be（）.<br>A:located in an air-conditioned area<br>B:mounted in the passenger compartment<br>C:protected by a collision bulkhead<br>D:permanently mounted

An aneroid barometer on a boat should always be（）.
A:located in an air-conditioned area
B:mounted in the passenger compartment
C:protected by a collision bulkhead
D:permanently mounted

出自：海船船员证

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