until
till
as
when
第1题：
Obviously, for a given fuel oil, its pour point is ______its cloud point.
A.lower than
B.higher than
C.as same as
D.better than
第2题：
When considering a vessel&39;s stability，which spaces in a general cargo vessel are the best locations for the carriage of bulk grain?
A.Deep tanks
B.Lower holds
C.Lower holds at the ends of the vessel
D.Tween-decks
第3题：
The water level in the gauge glass when a boiler is operating is _____ when the boiler is shut down.
A.lower than
B.higher than
C.below
D.equal to
第4题：
在船上应当日落时降下国旗.（）
第5题：
It shows mourning when you lower（）(半旗).
第6题：
Which of the following actions are stated in the correct order prior to loading or discharging cargo on a Ro-Ro vessel?
A.Lower the stern ramp，raise/open the stern door，turn on ventilation for cargo holds
B.Turn on ventilation for cargo holds，raise/open the stern door，lower the stern ramp
C.Turn on ventilation for cargo holds，lower the stern ramp，raise/open the stern door
D.Raise/open the stern door，lower the stern ramp，turn on ventilation for cargo holds
第7题：
Lower the anchor until it is clear of （）（锚链筒）.
第8题：
I can't arrive before 6.00. I'll try to be there_____ 6.30.
A. until
B. till
C. by
第9题：
“The anchor was heaved aweigh” means“（）”.
第10题：
On receiving the order “Lower away”, lower the anchor（） it is clear of the hawse pipe.