One method of constructing large marine diesel engines and reducing the total engine frame weight is through （）.

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• One method of determining crankshaft misalignment is by（）

  A . laying a straight edge across the crank webs at the crankpin and measuring the distance to the crankpin in two places B . measuring the crank drop on either side of each crank throw while the crankshaft is slowly rotated through one revolution C . rotating the crankshaft through one revolution, pausing each 90oof rotation to measure bearing clearances, top and bottom D . taking micrometer reading between the crank cheeks opposite the crankpin every 90°of crank angle rotatio

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• A system administrator notices that one of the mirrored disks, hdisk7 on datavg, has had a hardware failure. What is the best method of recover without causing additional problems?（）

  A . unmirrorvg datavg hdisk7 reducevg datavg hdisk7 replace the physical volume, run cfgmgr extendvg datavg hdisk7 mirrovg datavg hdisk7 B . varyoffvg datavg Rmdev -l hdisk7 -d Replace the physical volu,e run cfgmgr The system will automatically remirror when the disk is replaced C . unmirrorvg datavg hdisk7 rmdev -l hdisk7 - d replace the physical volume, run cfgmgr extendvg datavg hdisk7 The system will automatically remirror when the disk is replaced. D . unmirrorvg datavg hdisk7 reducevg data hdisk7 rmdev -l hdisk7 -d replace the physical volume, run cfgmgr extendvg datavg hdisk7 mirrovg datavg

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• When comparing java.io.BufferedWriter to java.io.FileWriter， which capability exists as a method in only one of the two？（） 

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• One of the methods NOT usually allowed in cleaning up oil spills in the United States is （）.

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• One method of controlling rats on vessels is by rat-proofing. Rat-proofing is accomplished by （）.

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• class One {  void foo（） {}  }  class Two extends One {   //insert method here  }  Which three methods， inserted individually at line 14， will correctly complete class Two？（）

  A .  int foo（） { /* more code here */ } B .  void foo（） { /* more code here */ } C .  public void foo（） { /* more code here */ } D .  private void foo（） { /* more code here */ } E .  protected void foo（） { /* more code here */ }

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• One of Company.com’s Linux partitions is experiencing excessive paging. They want to provide more memory to the partition to resolve this problem. What is the best method to add the memory？（）

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• The （） of the semi-built method of the construction crankshaft is that by making the two webs and crankpin from a single forging the grain flow in the steel follows the web round into the crankpin and back down the other web.

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• The teachers should use _____ materials as much as possible in teaching, which is one of the characteristics in communicative method.

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