【单选题】【单选】Your chart indicates that there is an isolated rock and the rock is named in vertical letters. This indicates the ______.
A.
rock is visible at low water springs only
B.
rock is a hazard to deep draft vessels only
C.
rock is dry at high water
D.
exact position of the rock is doubtful
【单选题】设m为同类资源数,n为系统中并发进程数。当n个进程共享m个互斥资源时,每个进程的最大需求是w,则下列情况会出现系统死锁的是( )。
【单选题】[ 2540 ] Your chart indicates that there is an isolated rock and names the rock using vertical letters. This indicates the ________.
A.
rock is visible at low water springs only
B.
rock is a hazard to deep draft vessels only
C.
rock is dry at high water
D.
exact position of the rock is doubtful
【单选题】The buoy symbol printed on your chart is leaning to the northeast. This indicates ______. 【45
A.
you should stay to the north or east of the buoy
B.
you should stay to the west or south of the buoy
C.
the buoy is a major lighted buoy
D.
nothing special for navigational purposes
【单选题】设m为同类资源数r的数目,n为系统中并发进程数。当n个进程共享m个互斥资源r时,每个进程对r的最大需求是w,则下列情况会出现系统死锁的是( )
【单选题】The buoy symbol printed on your chart is leaning to the northeast. This indicates.
A.
you should stay to the north or east of the buoy
B.
you should stay to the west or south of the buoy
C.
the buoy is a major lighted buoy
D.
nothing special for navigational purposes
【单选题】设m为同类资源数,n为系统中的并发进程数,当n个进程共享m个互斥资源时,每个进程的最大需求量是w,试问,下列情况下系统会死锁的是( )。
【单选题】设m为同类资源R的数目,n为系统中的并发进程数。当n个进程共享m个互斥资源R时,每个进程对R的最大需求是w;则下列情况会出现死锁的是( )。
【单选题】Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should().
A.
Expect to see cirrus clouds followed by altostratus and nimbostratus clouds
B.
Alter course to remain in the navigable semicircle
C.
Prepare for gusty winds,thunderstorms,and a sudden wind shift
D.
Expect clear weather,with steady winds and pressure,until the front passes
【单选题】设m为同类资源数,n为系统中并发进程数。当n个进程共享m个互斥资源时,每个进程的最大需求是w;则下列情况会出现系统死锁的是( )。