单选题A Class S EPIRB is a().Asubmarine EPIRBBsafety EPIRBCship EPIRBDsurvival craft EPIRB
单选题
A Class S EPIRB is a().
A
submarine EPIRB
B
safety EPIRB
C
ship EPIRB
D
survival craft EPIRB
参考解析
解析:
暂无解析
相关考题:
( 33 ) 创建一个名为 student 的新类 , 保存新类的类库名称是 mylib, 新类的 父 类是 P erson, 正确的命令是A ) CREATE CLASS mylib OF student A s P ersonB ) CREATE CLASS student OF P erson A s mylibC ) CREATE CLASS student OF mylib A s P ersonD ) CREATE CLASS P erson OF mylib A s student
Which step should be taken,if possible,when the vessel must be abandoned because of a distress situation ________.A.Alert the Coast Guard by using the survival craft's portable INMARSAT unitB.Program the SART and EPIRB to transmit the vessel's location and situationC.Place the SART and EPIRB in the“ON”position and secure them to the survival craftD.No additional steps are needed as the SART and EPIRB will both automatically float free and operate properly
class A { A() { } } class B extends A { } Which two statements are true?()A、 Class B’s constructor is public.B、 Class B’s constructor has no arguments.C、 Class B’s constructor includes a call to this().D、 Class B’s constructor includes a call to super().
Which two allow the class Thing to be instantiated using new Thing()?A、 public class Thing { }B、 public class Thing { public Thing() {} }C、 public class Thing { public Thing(void) {} }D、 public class Thing { public Thing(String s) {} }E、 public class Thing { public void Thing() {} public Thing(String s) {} }
class Mineral { static String shiny() { return "1"; } } class Granite extends Mineral { public static void main(String [] args) { String s = shiny() + getShiny(); s = s + super.shiny(); System.out.println(s); } static String getShiny() { return shiny(); } } 结果为:() A、3B、12C、111D、编译失败
COSPAS-SARSAT系统中,遇险船的位置由()决定A、与之相接的GPSB、S-EPIRB发出的121.5MHZ信号产生的多普勒频移植C、S-EPIRB发出的406MHZ信号产生的多普勒频移植
COSPAS/SARSAT卫星系统中,遇难船的位置是由()决定A、与之相接的GPSB、S-EPIRB发射的121.5MHZ信号产生的多普勒频移C、S-EPIRB发射的406MHZ信号产生德尔多普勒频移D、B+C
有关EPIRB的说法是不正确的是()A、EPIRB是船舶遇险时的主要报警设备B、EPIRB是船舶遇险时的辅助报警设备C、EPIRB报警称为船对岸的报警D、EPIRB报警后与RCC的通信称为遇险通信
单选题When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio().Aa distinctive signalBthe Morse Code signal for SOSCa computerized voice announcement of MaydayDyour vessel's International Radio Call Sign
多选题class A { A() { } } class B extends A { } Which two statements are true?()AClass B’s constructor is public.BClass B’s constructor has no arguments.CClass B’s constructor includes a call to this().DClass B’s constructor includes a call to super().
单选题CATEGORY A EPIRB’s transmit on frequencies that are monitored by().Aorbiting satellites in spaceBcommercial radio stationsCprivate,commercial,and military aircraftDordinary radio stations
多选题Which two allow the class Thing to be instantiated using new Thing()?Apublic class Thing { }Bpublic class Thing { public Thing() {} }Cpublic class Thing { public Thing(void) {} }Dpublic class Thing { public Thing(String s) {} }Epublic class Thing { public void Thing() {} public Thing(String s) {} }
单选题The vessel’s Emergency Position Indicating Radio beacon (EPIRB) must be tested().AweeklyBmonthlyCevery 2 monthsDevery 3 months
单选题The difference between a class A and a class B EPIRB is that the class A EPIRB().Aoperates on both military and civilian aircraft distress frequenciesBtransmits both an alerting signal and a homing signalCmust be the float free type and automatically activatedDoperates with a greater output of signal power
多选题public class Parent { public int addValue( int a, int b) { int s; s = a+b; return s; } } class Child extends Parent { } Which methods can be added into class Child?()Aint addValue( int a, int b ){// do something...}Bpublic void addValue (){// do something...}Cpublic int addValue( int a ){// do something...}Dpublic int addValue( int a, int b )throws MyException {//do something...}
单选题All self-propelled vessels on an international voyage must be equipped with how many Emergency Position Indicating Radio beacons (EPIRB)? ()AOne approved Category 1 EPIRBBThree approved Category 1 EPIRBsCOne approved Class B EPIRBDTwo approved Class B EPIRBs
单选题All self-propelled vessels on an international voyage must be equipped with how many Emergency Position Indicating Radiobeacons (EPIRB)()?AOne approved Class A EPIRBBTwo approved Class A EPIRBsCOne approved Class B EPIRBsDTwo approved Class B EPIRBs
单选题A Class A EPIRB is NOT().Aapproved by the CCSBdesigned for float free,automatic activationCoperated on 121.5/243 MHzDoperated manually
单选题Each Class A EPIRB shall be stowed in a manner which will permit().Aeasy access to its storage compartmentBreplacement of the battery without exposure to the weatherCit to float free if the vessel sinksDit to remain attached to the vessel
单选题Which step should be taken,if possible,when the vessel must be abandoned because of a distress situation().AAlert the Coast Guard by using the survival craft's portable INMARSAT unitBProgram the SART and EPIRB to transmit the vessel's location and situationCPlace the SART and EPIRB in the“ON”position and secure them to the survival craftDNo additional steps are needed as the SART and EPIRB will both automatically float free and operate properly