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
单项选择题 To prevent a wooden hull from leaking you caulk it（）.
单项选择题 To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
单项选择题 To develop maximum anchor holding power，the optimum angle between the anchor’s shank and the mooring lines is（）.
