单项选择题
A.Receives saturated steam from the generating tubes
B.Serves as a reservoir of boiler feed water
C.Holds internal fittings for separation of moisture from steam
D.Collects steam exhausted from the turbines
单项选择题 To find the cause of a gasoline engine’s failure to start，you should（）.
单项选择题 The three conditions which cause engine shutdown are overspeed，low lube oil pressure，and（）.
单项选择题 The Purchaser shall（），prior to the ship’s departure，the invoiced amount at the rate of exchange applicable on the day of payment.