[单项选择] After working all night and successfully configuring a Cisco router for the TestKing network you save your changes on the startup config, reboot the router, and go out for a cigarette. When you return, none of your changes are active and the router boots to the initial configuration mode! Which of the choices below indicates the source of your problem?（）
A. Hardware failure in NVRAM prevents the router from loading the config
B. Startup-config in flash is corrupt and cannot be analyzed
C. Router configuration-register set to bypass startup configuration
D. Startup-config in NVRAM is corrupt and cannot be analyzed
E. None of the above

[单项选择]She has been working hard day and night during these years（）she could pay for the lost necklace.
A. in order that
B. as long as  
C. the moment
D. because

[单项选择]After working on a router, some problems arise and you wish to view the commands that you recently entered. Which IOS command opens the history buffer and displays the most recently entered commands?（）
A. Show history
B. Show buffers
C. Show typed commands
D. Show terminal buffer
E. Show command

[单项选择]It was so deep in the night. All was quiet ______ an occasional baby cry in the neighboring building.
A. except for
B. but
C. except
D. beside

[单项选择]After all, ______ her faults are, she is Arnold's mother.
A. no matter how
B. however
C. whatever
D. what

[单项选择]Don't be too ______ on them; after all, they are only little children.
A. strict
B. strong
C. hard
D. heavy

[单项选择]I stayed up all night （） to find a new solution to the problem.
A. trying
B. have tried
C. try
D. tried

[单项选择](Staying up) all night, Tom (finished not only) the homework (but also read) many poems of his (favorite) poets.
A. Staying up
B. finished not only
C. but also read
D. favorite

[单项选择]The ______ noise whistles kept me awake all night.
A. incarnate
B. incessant
C. repetitious
D. rampant

[单项选择]We kept our ______ all night to frighten the wolves.
A. burning fire
B. burnt fire
C. fire burning
D. fire burnt

[单项选择]All the damage and shortage,（）those incurred after discharge and before delivery to receivers, should be noted in the discharging report.
A. including
B. besides
C. except
D. in addition to

[单项选择]All the ground was covered ______ snow last night.

[单项选择]All was quiet the whole night _______the light noise given out by the electric fan.
A. besides
B. except that
C. beside
D. except for

[单项选择]The two scientists stopped working together because their theories did not ______.
A. confirm
B. conform
C. ally
D. submit

[单项选择]Most pregnant working women receive their statutory maternity pay directly from their employer for a maximum of（）weeks.
A. 17
B. 18
C. 19
D. 20

[单项选择]Personnel working with refrigeration systems, and subject to the exposure of refrigerants should wear （）.
A. face shield
B. a respirator
C. rubber gloves
D. an all purpose gas mask

[单项选择]The most obvious difference between the working class and the middle class in English is thek ______ .
A. dress
B. work
C. accent
D. meal

[单项选择]The working pattern of Hainan Airlines is similar to ______ of Capital Airlines.
A. that
B. which
C. what
D. whose

[单项选择] You are working in an online transaction processing (OLTP) environment. You use the FLASHBACKTABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command, the system change number (SCN) was 663571. After flashing back the CUSTOMERS table, you realize that the table is not in the correct state. Now, you need to reverse the effects of the FLASHBACK TABLE command. Which is the fastest and the most efficient option to reverse the effects of the FLASHBACK TABLE command?（）
A. Restore the backup control file and open the database with RESETLOGS option.
B. Perform point-in-time recovery because flashback cannot be performed again on this table
C. Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571
D. Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571

[单项选择]

People who work night shifts are constantly fighting against an "internal clock" in their bodies. Quite often the clock tells them to sleep when their job requires them to remain fully awake. It’s no wonder that more accidents happen during night shills than at any other time. Light therapy(照光治疗法) with a bright light box can help night-shift workers adjust their internal clock, However, many doctors recommend careful planning to help improve sleep patterns. For example, night-shift workers often find it difficult to sleep in the morning when they get off work because the body’s natural rhythm(节律) fights back, no matter how tired they are. Some experts recommend that night-shift workers schedule two smaller sleep periods--one in the morning ’after work, and another longer one in the afternoon, closer to when the body would naturally need to sleep. It’s also helpful to ask friends and family to cooperate by avoiding visits and phone calls during th
A. have frequent visits and phone calls
B. improve their family relationship
C. have two smaller sleep periods
D. rely mainly on light therapy