更多"When visibility is reduced to about"的相关试题:
[单项选择]When visibility is 20 nautical miles, we say that visibility is（）.
A. very good
B. good
C. poor
D. moderate
[单项选择]When visibility is 10 nautical miles, we say that visibility is（）.
A. very good
B. good
C. poor
D. moderate
[单项选择]In reduced visibility，you hear two prolonged blasts of a whistle. This signal is sounded by a （）.
A. power-driven vessel dead in the water
B. sailing vessel on the port tack
C. vessel not under command
D. vessel fishing with nets
[单项选择]When we write, we must write as（）as we can.
A. careful
B. carefully
C. more careful
D. more carefully
[单项选择]We（）every day when we were children.
A. used to swim
B. used to swimming
C. use to swim
D. use to swimming
[单项选择]You are underway in reduced visibility.You hear the fog signal of another vessel about 20° on your starboard bow.Risk of collision may exist.You should（）.
A. alter course to starboard to pass around the other vessel
B. reduce your speed to bare steerageway
C. slow your engines and let the other vessel pass ahead of you
D. alter course to port to pass the other vessel on its portside
[单项选择]When visibility is about 1 nautical mile only, we say that visibility is（）.
A. very
B. good
C. moderate
D. poor
[单项选择]LOW ABOUT 300 MILES SOUTHWEST OF LISBON 1004 MOVING SLWLY SOUTHEAST COMMA FILLING 1006 BY MIDNIGHT.This phrase is likely to be under the heading of（）.
A. GALE WARNING
B. 24 HOURS FORECAST
C. GENERAL SITUATION
D. TROPICAL CYCLONE WARNING
[单项选择]When we have agreed broadly on what should be said, the secretary will produce a preliminary （）for the committee's approval.
A. project
B. design
C. draft
D. drawing
[单项选择]When we say that two objects have relative motion, we mean （）.
A. the distance between them remains the same
B. the distance between them is changing
C. the position between them is not changing
D. their positions to the earth remain the same
[单项选择]I was talking with my mother on the phone when we were（）suddenly.
A. cut down
B. cut off
C. cut across
D. cut back
[单项选择]Our lab was being（）when we visited the university.
A. rebuilt
B. rebuild
C. rebuilding
D. to rebuild
[单项选择]When we arrived here yesterday, their ship （）for three days.
A. has left
B. had left
C. has been away
D. had been away
[单项选择]If found oil when we open low oil level plug of separator, it indicates （）
A. the separator is overload
B. the monitor equipment of separator fails
C. the discharge pump of separator can not work
D. the temperature of oil water is low
[单项选择]When we were having a meeting, the director（）the bad news by telephone.
A. was telling
B. was told
C. could tell
D. would tell
[单项选择]This song often（）us of the days when we worked together in the countryside.
A. remembers
B. reminds
C. reflects
D. memorizes
[单项选择]The play（）already（）when we got to the theatre.
A. has;tarted
B. was;tarted
C. have;started
D. had;started
[单项选择]The ship（）about 1/2 miles southward of the lighthouse.
A. moors
B. moor
C. is moored
D. mooring
