单项选择题

To reduce mild fever the MOST useful drug is（）.

A.bicarbonate of soda
B.paregoric
C.aspirin
D.aromatic spirits of ammonia

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单项选择题

A.after drydocking，while the hull is moist
B.after drydocking，and the hull has dried
C.afloat，where it is leaking
D.afloat，in all accessible areas

单项选择题

A.the actual depth
B.added to or subtracted from the charted depth
C.multiplied by the charted depth
D.divided by the charted depth

单项选择题

A.0 degrees
B.10 degrees
C.20 degrees
D.30 degrees