root canal

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• In 1979 an extensive（）program was in progress throughout Suez Canal.

  A . a dredge and widen B . dredged and widened C . dredging and widening D . being dredging and widening

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• （）the canal transit，the radar was operating.

  A . At B . In C . During D . With

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• I undertake to bring to the notice of the Suez Canal Authorities，before my vessel（）the Canal，any defects which may appear.

  A . enters into B . enters C . enters in D . enters to

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• 斗渠（lateral canal）

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• Any vessel that does not have the necessary certificates on board will （） the Panama Canal．

  A . be heavily fined by B . be ordered to depart from C . not be permitted to transit D . not be required to leave

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• By the sole fact of using the Canal Waters，Masters and Owners of vessels（）themselves to accept all the conditions of the present Rules of Navigation.

  A . lash B . fasten C . bind D . tie

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• When entering the bridge，pilots of the Suez Canal want the master of the ship to fill in （）.

  A . Their yellow book B . Their seaman's book C . Their Pilotage form D . Their bill of health

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• 在Linux中，如果忘记了root密码，如何可以修改root密码（）。

  A . 使用单用户模式进入系统 B . 使用系统安装光盘的Rescue模式挂载本地硬盘 C . 使用其他用户执行passwd root D . 使用其他用户编辑shadow文件

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• Vessels transiting Suez Canal are charged according to their（）.

  A . gross tonnage B . Suez Canal tonnage's C . net tonnage's D . Panama Canal tonnage'

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• Which is true on the subarachnoid space in the vertebral canal（）。

  A . lies between dura matter and arachnoid B . up to subarachnoid space in the skull by the foramen magnum C . down the the height of the fifth sacral vertebral D . terminal cistern is formed by the space below the second sacral vertebral E . the fluid in it can communicate with that in the center canal of spinal cord directly

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• Mooring（）are placed on both banks of the Suez Canal about 200m apart．

  A . bollards B . ballasts C . bands D . benefit

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• I don’t think there is too much difference between transiting Suez Canal and panama Canal（）the tonnage certificate required.

  A . except B . except that C . beside D . except for

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• 股管femoral canal

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• Get the searchlight（）for transiting the canal at night．

  A . turned off B . already C . almost D . ready

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• The Panama Canal the Atlantic and Pacific oceans.

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• The aim to build the Panama Canal was to connect America and Panama.( )

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• 八十年代的 拉芙运河（ Love Canal ）事件，对美国印象深远，从此 EHS 应运而生。

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• Most of the projects concerning the Grand Canal were carried out in ____.

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• The original canal was twice broadened for the larger modern boats.

  A．rerouted B．widened C．reinforced D．tested

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• 材料：Navigation in the canal

  It is not recommended that any person shall be allowed on the bridge or in the pilot house except the pilot and other representative of the Canal，and Master and such officers and other members of the crew of the vessel as may be necessary for its navigation and control，management，operation and safety． Navigational aids are difficult to maintain and are reported to be unreliable in this waters．A considerable amount of shipping uses the canal and，in addition，many local fishing craft with nets may be encountered in the area.Since passage through the canal entails a run of more than 250 miles，long periods of considerable vigilance are necessary in order to maintain safe standards of navigation． 问题：PILOT HOUSE is referred to ______ in this passage． A.the cabin in which the pilot stays B.the space in which the rudder is located C.the bridge of vessels D.the cabin which is prepared for the pilot SHIPPING is referred to ______ in this passage．A.he operations of transportation of goods by sea B.the procedures of marine transportation business C.the management of marine transportation business D.the vessels and ships The author implies that ______ ．A.even by making use of modern instrument it is difficult to maintain safety in this area B.mariners should take it easy when navigating in this area C.modern instrument should be used to control the safety of navigation in this area D.it is dangerous when navigating in this area The person on the bridge or in the pilot house shall be those ______ ．A.who are recommended B.who are familiar with the navigation，management，operation and safety control C.who are directly involved in the navigation，management，operation and safety control D.who have nothing to do with the navigation，management，operation and safety control

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• 关于执行[root@localhost/~]/catafile和[root@localhost/~]/cat

  A.两个cat命令的功能是等效的，但执行方式却不同 B.第2个cat没带任何参数，运行时在读stdin文件，然后重定向到afile文件 C.两个cat命令的功能不等效，但执行方式相同 D.第1个cat带有一个文件参数afile，直接读取afile文件

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• Get searchlight______for transiting the canal at night．

  A.on B.already C.Almost D.ready

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• 使用文字法为test文件修改权限：比如给同组用户分配执行权限 [root@host root] chmod g+x test 那么，删除属主、同组的读和执行权限 命令为： [root@host root]

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• Up to 90,000 tourists crowd its streets and canals every day &8212;- faroutnumberingthe 55 ,000 permanent residents（）

  A．数量多于 B．少于 C．相等 D．差额

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