[单项选择]What’s the attitude of many old senior officers for a minor fire?（）
A. They would like to call out all hands out for it
B. They would rather handle themselves, then call out all hands
C. They prefer to put it out by themselves
D. They think it is difficulty to call out all hands for a minor fire

[单项选择]For many years marine centrifuges were designed for （） operation, that is the machines were run for a period during which solids accumulated in the bowlThe machine was stopped when the accumulated solids began to impair its performance.
A. purifying
B. batch
C. long period
D. temporary

[单项选择]What must be configured on the network in order for users on the Internet to view web pages located on Web Server 2（）。
A. On router R2, configure a default static route to the 192.168.1.0 network.
B. On router R2, configure DNS to resolve the URL assigned to Web Server 2 to the 192.168.1.10 address.
C. On router R1, configure NAT to translate an address on the 209.165.100.0/24 network to 192.168.1.10.
D. On router R1, configure DHCP to assign a registered IP address on the 209.165.100.0/24 network to Web Server 2.

[单项选择]Many people save money to（）for their old age.
A. supply
B. offer
C. provide
D. yield

[单项选择]What a beautiful house! Especially there are many（）
A. furniture
B. furnitures
C. pieces of furniture
D. pieces of  furnitures

[单项选择] What is wrong with the following code？（）   class MyException extends Exception {}   public class Qb4ab {   public void foo（） {  try {  bar（）；  } finally {  baz（）；   } catch （MyException e） {}  }   public void bar（） throws MyException {   throw new MyException（）；  }   public void baz（） throws RuntimeException {   throw new RuntimeException（）；   }   }  
A. Since the method foo（） does not catch the exception generated by the method baz（）， it must      declare the RuntimeException in its throws clause.
B. A try block cannot be followed by both a catch and a finally block.
C. An empty catch block is not allowed.
D. A catch block cannot follow a finally block.
E. A finally block must always follow one or more catch blocks.

[单项选择]Calibration Stations give special transmissions for the calibration of ship’s（）.
A. gyro-compass
B. marine radar
C. DF
D. navigational satellite

[单项选择]Which condition represents the appropriate time for setting off distress flares and rockets? （）
A. Only when there is a chance of their being seen by rescue vessels
B. At half hour intervals
C. At one hour intervals
D. Immediately upon abandoning the vessel

[单项选择]Apparent altitude is sextant altitude corrected for（）.
A. parallax and personal error
B. inaccuracies in the reading and reference level
C. visibility and magnitude
D. All of the above are correct

[单项选择]如果干扰信号频率关系符合fR=fo±2f中（fo为本振，f中为中频），则是属于哪种干扰（）。
A. 同频干扰
B. 互调干扰
C. 镜像干扰
D. 阻塞干扰

[单项选择]设混频器的本振频率为f_o，输入信号频率为f_s，输出信号频率为f_i，满足f_o=f_s+f_i。若有干扰信号f_n=f_o+f_i，则该干扰称为（）
A. 交调干扰
B. 互调干扰
C. 镜像干扰
D. 中频干扰

[单项选择]如果干扰信号频率关系符合fR=fo士2f中（fo为本振，f中为中频），则是属于哪种干扰（）。
A. 镜像
B. 互调
C. 交调
D. 寄生响应

[单项选择]You are a senior network administrator at TestKing, and while performing thepassword recovery procedure on your 2500 series Cisco router, you type in thefollowing command:o/r 0x2142What is the purpose of this command?（）
A. It is used to restart the router.
B. It is used to bypass the configuration in NVRAM.
C. It is used to enter ROM Monitor mode.
D. It is used to view the lost password.
E. It is used to save the changes to the configuration.

[单项选择]Leg penetration to depths which require pullout forces greater than that which can be supplied by the buoyancy of the hull may exist in（）.
A. soft mud
B. sand
C. silt
D. soft to firm clays

[单项选择]The minimum fuel oil delivery pressure required for diesel engine injection depends primarily on the（）
A. degree of cylinder air turbulence
B. firing pressure in the engine
C. quality of fuel to be injected
D. duration of the ignition delay period

[单项选择]The TestKing network is subnetted using 29 bits for the subnet mask. Which wild card mask should be used to configure an extended access list to permit or deny access to an entire subnetwork?（）
A. 255.255.255.224
B. 255.255.255.248
C. 0.0.0.224
D. 0.0.0.8
E. 0.0.0.7
F. 0.0.0.3

[单项选择]In comparison to electric power，hydraulic power for jacking systems has the advantage of（）.
A. better control capabilities
B. less maintenance and repair
C. fewer personnel needed during jacking
D. less preload needed

[单项选择]Coast Guard regulations require that all of the following emergencies be covered at the periodic drills on a fishing vessel EXCEPT（）.
A. minimizing the affects of unintentional flooding
B. fire on board
C. rescuing an individual from the water
D. emergency towing