[单项选择]I am not used to speaking（） public.
A. in
B. at
C. on
D. to

[单项选择]I am not used to speaking（）public.
A. in
B. at
C. on
D. to

[判断题]who am I和whoami命令的区别在于whoami表示的是登陆是的用户，who am I表示的是目前的用户。

[多项选择] In your Database, the TBS PERCENT USED parameter is set to 60 and the TBS PERCENT FREE parameter is set to 20. Which two storage-tiering actions might be automated when using information Lifecycle Management (ILM) to automate data movement?（）
A. The movement of all segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
B. Setting the target tablespace to read-only
C. The movement of some segments to a target tablespace with a higher degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED
D. Setting the target tablespace offline
E. The movement of some blocks to a target tablespace with a lower degree of compression, on a different storage tier, when the source tablespace exceeds TBS PERCENT USED

[单项选择]Which of the valves listed should be used either in the fully opened or the fully closed position?（）
A. A gate valve
B. A globe valve
C. Any check valve
D. Any needle valve

[单项选择]Cisco Express Forwarding (CEF) is mainly used to increase packet switching speed, reducing the overhead and delays introduced by other routing techniques, increasing overall performance.Which of the following concerning CEF is recommended by Cisco?（）
A. Use default Layer 4 hash in core.
B. Use default Layer 3 hash in distribution.
C. Use default Layer 4 hash in distribution.
D. Use default Layer 3 hash in core and Layer 3 + Layer 4 hash in distribution layer.

[单项选择]The Cisco 521 Wireless Express Access Point used in the Smart Business Communications System can be configured to operate in which mode?（）
A. controller-based mode only
B. either standalone mode or controller-based mode
C. standalone mode only

[单项选择]If the detergent type lubricating oil being used in a diesel engine is black, the oil （）
A. must be centrifuged
B. must by filtered
C. must be changed
D. is holding finely dispersed carbon in suspension

[单项选择]On chart，bearings to near objects should be used in preference to objects farther off，because（）.
A. a small error in bearing or in laying it down on the chart has a greater effect in misplacing the position the longer the line to be drawn
B. all scales are kept updated for vital information by Notices to Mariners
C. the larger the scale of the chart，the greater the detail that can be shown on it
D. the mariner using the medium scale charts for passage along a coast need not transfer on to a large scale for short distances

[单项选择]By default, which command can be used to display information about packets that have been logged with the syslog firewall filter action?（）
A. show log
B. show firewall
C. show log messages
D. show firewall log

[单项选择]I am terribly sorry! I broke the vase.（）
A. I don't want it. 
B. Don't worry.  
C. You meant to do it.  
D. You buy one for me.

[单项选择]When I was a child, I used （） to the river and bathe in the evening.
A. to going
B. to go
C. go
D. going

[单项选择]I am going to（）the meal, I insist.
A. pay 
B. pay for
C. buy 
D. take

[单项选择]I am not（）command.
A. on
B. in
C. under
D. at

[单项选择]Which of the following should be used to test an internal NIC without having to connect it to thenetwork?（）
A. Loopback cable
B. Crossover cable
C. Rollover cable
D. Straight cable

[单项选择]The revolving drum of a winch used to haul lines is called a（）.
A. bull gear
B. gypsyhead
C. spanner
D. wildcat

[单项选择]I have not found my stowage plan yet; in fact，I am not sure（）I could have done with it.
A. whether
B. what
C. why
D. when

[单项选择]Once more I am in Boston,（）I have not been for ten years.
A. which 
B. where
C. that 
D. as

[单项选择]I am a seaman, I come（）the People’s Republic of China.
A. from
B. to
C. on
D. for

[单项选择]I am ready（）your message.
A. to receive
B. receiving
C. received
D. receive