更多"[单选题]___a certain doubt among the s"的相关试题:
[单选题] Without doubt the radar is a highly important navigation aid. But duty officer shall aware that_____when using it.
A.Its range reading is more accurate than its bearing reading
B.A low-lying coastline with a long, flat beach will show up properly on the radar
C.Radar is only aimed at collision avoidance.
D.The use of radar is necessary only when visibility is restricted.
[单选题] If there is any doubt as to the proper operation of a radar，which statement is TRUE ________．
A.Only a radar expert can determine if the radar is operating
B.All radars have indicator lights and alarms to signal improper operation
C.A radar range compared to the actual range of a known object can be used to check the operation of the radar
D.The radar resolution detector must be energized to check the radar
[单选题] The number of foreign students attending Chinese University _____ rising steadily since 1990.
A. is
B. are
C. has been
D. have been
[单选题] Thousands of college students around the United States _( )_ in sports.
A. participate
B. go
C. take
D. volunteer
[单选题] If in any doubt as to the pilot's actions or intentions，the officer in charge of the navigational watch shall ______．
A.notify the master immediately
B.take whatever action is necessary before the master arrives
C.take necessary actions at his/her discretion
D.seek clarification from the pilot
[单选题] Students should be encouraged to be _( )_ thinkers.
A. independent
B. independence
C. advantage
D. average
[多选题]The United Nations has certain principal organs, including:
A. The General Assembly
B. the Council
C. the security Council
D. the Permanent Court of 1nternational Justice
[判断题]Consuls enjoy certain immunity, also such communities are not necessarily as extensive as those enjoyed by diplomats.
A.正确
B.错误
[判断题]Foreign states may be entitled to certain rights over the territory of a sovereign state in some exceptional situations.
A.正确
B.错误
[单选题] The Rules state that certain factors are to be taken into account when determining safe speed．Those factors include ______．
A.state of wind，sea，and current，and the proximity of navigational hazards
B.maximum attainable speed of your vessel
C.temperature
D.aids to navigation that are available
[单选题] It is necessary that all students who have applied for the scholarship _____ their files as soon as possible.
A. to submit
B. submitting
C. be submitted
D. submit
[单选题] College students are expected to _( )_ - a second language.
A. attend
B. adjust
C. master
D. suppose
[单选题]He likes to rob shoulders with the students, letting them _( )_ his happiness.
A. share
B. create
C. prefer
D. imagine
[单选题] It may be found that，in certain circumstances，Radar Beacon can cause unwanted interference particularly ______．
A.At close range
B.At end on situation
C.At head on situation
D.At crossing situation
[单选题] Most colleges will _( )_ students to change their subject choices in the early weeks of a semester.
A. ruin
B. allow
C. prefer
D. appreciate
[单选题]Among the four parts of the mechanical refrigerating system, ___performs the cooling function.
A.the expansion device
B.the evaporator
C.the compressor
D.the condenser
[单选题]After serving for a certain period,it is necessary for a ship a shipyard for repairs.
A.entered
B.entering
C.to enter
D.enter
[单选题] He punished students _____ they did anything wrong.
A. however
B. whenever
C. whatever
D. whichever
[单选题] The number of the students in our school _____ 1500.
A. is
B. are
C. has
D. have
