第1题:
A.constantly
B.frequently
第2题:
A、cannot understand more
B、don't understand more
C、must not understand more
D、could not have understood more
第3题:
A、Under no circumstances I will
B、Under all circumstances I will
C、Under no circumstances will I
D、Under all circumstances will I
第4题:
第5题:
第6题:
把防鼠挡装在系泊缆上。()
第7题:
The life-jacket is usually put ()in your cabin.
第8题:
alternator
glass thermometer
burdon tube
piezoelectric pressure transducer
第9题:
The fishing vessel must keep clear of the vessel not under command
If the vessel not under command is a power-driven vessel,she must keep clear of the fishing vessel
They must exchange whistle signals
Both vessels are required to take action to stay clear of each other
第10题:
sea water temperature must never be warmer than 40℃
jacket water pressure should always be greater than the sea water pressure
jacket water temperature must always be less than 60℃
jacket water pressure must always be less than the sea water pressure
第11题:
tend to twist about its long axis
expand in length and in diameter
contract in length and expand in diameter
flex at right angles to the applied pressure
第12题:
can’t
mustn’t
may
may not
第13题:
A、Nice to meet you.
B、I'm a secretary.
C、Daniel Anderson.
第14题:
A)take it easy
B)good night
C)must you go so soon
D)oh,I understand
第15题:
The_______is a crystal which, under pressure, produces an electric current which varies with the pressure
A.alternator
B.glass thermometer
C.bourdon tube
D.piezoelectric pressure transducer
第16题:
第17题:
第18题:
把防鼠档装在系泊缆上。()
第19题:
compressor;condenser
condenser;evaporator
throttle valve;evaporator
evaporator;condenser
第20题:
the bridge watch-keeper
the captain
the chief engineer
the engine room staff
第21题:
Weight of the vehicles
Geographical area of the voyage
Dynamic forces under adverse weather conditions
All of the above
第22题:
be instantly put on
be instant put into use
be instantly put into effect
be put immediately
第23题:
So
That
It
Such