As
What
That
It
第1题:
_____, boys like footballs.
A: Generally speaking
B: General speaking
C: Generally spoken
D: Speaking generally
第2题:
A.very often
B.unexpectedly
C.very rarely
D.once a month
第3题:
Generally, the first action in extinguishing an LFG fire caused by escaping gas is to ______.
A.sweep flames away with water spray
B.shut off the leak
C.use a chemical foam fire extinguisher
D.call the local fire department
第4题:
Good anchorage may be obtained anywhere,generally mud and sand,in this water area Vessel may have______.
A.good dragging ground
B.good towing ground
C.good holding ground
D.good grabbing ground
第5题:
greater will the water pressure be
the water pressure will be greater
the greater the water pressure will be
greater the water pressure will be
第6题:
engine
sea water pump
cylinder cooler
fresh water generator
第7题:
A land breeze
A sea breeze
A norther
A prevailing westerly
第8题:
greater will the water pressure be
the water pressure will be greater
the greater will be the water pressure
greater the water pressure will be
第9题:
Oil leaking from tanks inside engine room
Engine room cleaning water
Water leaking from the separator sludge tank
Sewage
第10题:
It is used by the residents of Toronto.
It is returned to a place deep in the lake.
It is cooled down before being used again.
It is added to the water inside air-conditioning systems.
第11题:
As
What
That
It
第12题:
High water line
Low water line
Low water spring line
Tide level
第13题:
A.to send
B.to have sent
C.to have been sending
D.to be sending
第14题:
Believe it or not,the day when you can go to the moon is coming soon.You can go into space (11) space shuttle.It (12) about three days for the shuttle to go from the earth to the moon. The shuttle flies a long way to a space station. You can stay there for a short rest and then it will (13) you to the moon.
Now you can jump out of the shuttle. But you mustn't take (14) your spacesuit,because it is very hot in the daytime and very cold at night on the moon. The moon is much smaller than the earth. Things are (15) 0n the moon than they are on the earth. You can jump high every time you take a step. You will find that it is never tiring to walk on the moon. You don't need to take an umbrella or a raincoat with you,(16) there is no rain on the moon You can hear (17) because there is no air on the moon. And there are no animals or(18) living things there.
The moon moves more slowly than the earth,so one day on the moon is as long as two weeks on the earth and one night is just as long as two weeks on the earth. What could you do in (19 )long days and nights and in a silent world?' Now scientists are trying to make the (20) 0f the moon. But our earth is really a far better place to live,as long as we take good care of it,
( )11.
A.on
B.in
C.by
D.with
第15题:
Good anchorage may be obtained anywhere in this water area, the bottom being generally mud and sand, vessel may have ______.
A.good getting ground
B.good holding ground
C.good grabbing ground
D.good handling ground
第16题:
第17题:
a separate air ejector unit
a direct unimpeded connection between second stage and salt water feed heater
either by vacuum drag or an external line from the first stage via a fixed orifice
the fixed orifice provided in the steam supply line
第18题:
Cooling water is alkalescence
cooling water is acidity
cooling water has salinity
cooling water has impurity
第19题:
They pump the air continuously to the units in each room.
They lower the temperature of the water in the system.
They help the water cool down naturally on the roof .
They gradually clean the water as it flows through the building.
第20题:
sweep flames away with water spray
shut off the leak
use a chemical foam fire extinguisher
call t e local fire department
第21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22题:
gases
paints
inhibitors
detergent
第23题:
Enwave's system is said to work only in cities located near the Great Lakes.
The water deep in Lake Ontario always remains at the same temperature.
Experts warn that the use of CFCs in Enwave' s system will add to global warming.
Toronto is now searching for new natural sources of water to use in its water supply.
第24题:
sweep flames away with water spray
shut off the leak
use a chemical foam fire extinguisher
call the local fire department