It is the regular rise and fall of ocean waters.
It is the destructive wall of water.
It is the sudden rise of ocean waters.
It is the underwater earthquake.
第1题:
A rapid rise or fall of the barometer indicates ______.
A.heavy rain within six hours
B.a decrease in wind velocity
C.a change in the present weather conditions
D.that fog will soon set in
第2题:
If a hurricane several hundred miles away is moving in your general direction your barometer would ______.
A.start to rise rapidly
B.start to fall gradully
C.rise slowly, begin “pumping” and then start a slow, steady fall
D.remain steady
第3题:
Of the four possible tune movements, high fall is used for statements and wh-questions; high rise is used for questions asking for repetition of something; low rise is for yes/no questions, etc. and fall rise is for corrections and polite contradictions.()
第4题:
Which of the following is not the duty of the sailor on gangway watch? ()
第5题:
to trace and locate enemy vessels
to monitor deep-sea volcanic eruptions
to study the movement of ocean currents
to replace the global radio communications network
第6题:
fetch
distant winds
local storms
the pull of the moon
第7题:
an increase of unemployment
a decrease in tourist attractions
the higher cost of support facilities
a rise in price and a fall in pay
第8题:
adjusted
adjusting
adjusts
adjust
第9题:
temperature and salinity differences in the water
wind and density differences in the water
water depth and underwater topography
rotation of the Earth and continental interference
第10题:
North Cape Current
Labrador Current
Greenland Current
North Atlantic Current
第11题:
start to rise rapidly
start to fall gradually
rise slowly,begin pumping and then start a slow,steady fall
remain steady
第12题:
对
错
第13题:
The surface currents of the South Atlantic,South Pacific and South Indian Ocean follow,in general,a regular pattern of ______.
A.counter-clockwise circulation
B.clockwise circulation
C.trend from east to west
D.trend from north to south
第14题:
Of the four possible tune movements, high fall is used for statements and wh-questions; high rise is used for questions asking for repetition of something; low rise is for yes/no questions, etc. and fall rise is for corrections and polite contradictions.()
A对
B错
第15题:
When you keep a gangway watch, you should ()the mooring lines according to the rise and fall of the tide.
第16题:
()the rise and fall of the tide.
第17题:
Notice
Note
Attention
Look out
第18题:
over
besides
near
underneath
第19题:
rolling
pitching
heaving
swaying
第20题:
He won't come home for lunch, will he?
Have you finished your homework?
Are you a student or a teacher?
How are you?
第21题:
swell
shrinkage
flash off
lack of water
第22题:
Notice
Note
Attention
Look out
第23题:
rise, rise also
rise, drop
drop, rise
drop, drop also