更多"In modern fathometers the sonic or "的相关试题:
[单项选择]You hear the general alarm and ship’s whistle sound for over 10 seconds. Traditionally，this is the signal for（）.
A. abandon ship
B. dismissal from fire and emergency stations
C. fire and emergency
D. man overboard
[单项选择]Modern centrifuge designs enable continuous over a considerable period of timeThis is achieved by which is timed to discharge the sludge at regular intervals（）
A. an injection process
B. an ejection process
C. a separation process
D. a heating process
[单项选择]Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is（）
A. entirely constant pressure
B. entirely constant temperature
C. a combination of constant volume and constant pressure
D. a combination of constant temperature and constant pressure
[单项选择]Modern marine diesel engines using mechanical fuel injection, operate on a combustion cycle which is（）
A. a combination of constant volume and constant pressure
B. a combination of constant temperature and constant pressure
C. entirely constant pressure
D. entirely constant volume
[判断题]Modern linguistics is different from traditional grammar.
[单项选择]Modern linguistics regards the written language as （）
A. primary
B. correct
C. secondary
D. stable
[单项选择]Only the most sophisticated theories of modern physics can（）this phenomenon.
A. account for
B. count on
C. account of
D. count for
[判断题]Modern linguistics is mostly prescriptive, but sometimes descriptive.
[单项选择]The convenience of modern freeways, railways and airplanes makes travel in America as easy as （）
A. pie
B. bread
C. soup
D. wine
[单项选择]Technology is to the development of the modern society a matter of（）importance.
A. depressing
B. compelling
C. suppressing
D. supreme
[单项选择]（）is not used in modern radar.
A. EBL
B. VRM
C. CRT
D. Grease pencil
[单项选择]Our ship（）with many modern navigational instruments.
A. equipped
B. is equipped
C. equips
D. has equipped
[单项选择]Injectors on modern engines are cooled by a combination of the intensive bore cooling in the cylinder by a combination of the intensive bore pockets and by the fuel which is re-circulated through the injector when the follower is on the （）of the cam or when the engine is stopped.
A. slope
B. base
C. top
D. bottom
[单项选择]With ducted air conditioning systems, the modern tendency is to use（）
A. central air conditioning system
B. high velocity system
C. low velocity system
D. single duct system
[单项选择]In a modern internal combustion diesel engine, the load carrying part of the engine is referred to as the（）
A. bedplate or base
B. sump or oil pan
C. cylinder block
D. frame
[单项选择]In modern linguistics, speech is regarded as more basic than writing, because （）
A. in linguistic evolution, speech is prior to writing
B. speech plays a greater role than writing in terms of the amount of information conveyed
C. speech is always the way in which every native speaker acquires his mother tongue
D. All of the above
[单项选择]My parents are not interested in modern music. They are（）the times.
A. before
B. behind
C. after
D. low
[单项选择]With the help of modern technology, ships are able to receive automated broadcast of safety messages（）.
A. by day or at night
B. almost round the clock
C. somewhat and sometime
D. from sunrise and sunset
