[单项选择]While {{U}}attempting{{/U}} to find a new route to India, Columbus discovered America by accident.
A. sailing
B. failing
C. trying
D. hoping

[单项选择]While {{U}}attempting{{/U}} to find a new route to India, Columbus discovered America by accident.
A. sailing
B. failing
C. trying
D. hoping

[单项选择] While attempting to expand a file system, an administrator receives an error message indicating that the filesystem is not recognized. Running the 'lsfs' command fails to display any output, but the 'df' command is working and displays normal filesystems. What is the likely cause of the problem?（）
A. The /etc/filesystems file is missing.
B. The /dev/hd8 logical volume is corrupt.
C. The hosting volume group is not varied on.
D. The /var and /tmp filesystems may be full.

[单项选择]They believe that businesses have to find new ______ and take advantage of every selling technique that might lead people to buy.
A. managers
B. salespersons
C. investors
D. customers

[单项选择]While attempting to expand a file system， an administrator receives an error message indicating that the filesystem is not recognized. Running the ’lsfs’ command fails to display any output， but the ’df’ command is working and displays normal filesystems.  What is the likely cause of the problem？（）  
A. The /etc/filesystems file is missing.
B. The /dev/hd8 logical volume is corrupt.
C. The hosting volume group is not varied on.
D. The /var and /tmp filesystems may be full.

[单项选择]Scientists find the new cults bewildering because they are ______.
A. too reactionary
B. too subjective
C. based on false evidence
D. derived from inappropriate sources

[单项选择]Which multicast address does RIPv2 use for route updates by default?（）
A. 224.0.0.2
B. 224.0.0.5
C. 224.0.0.9
D. 255.255.255.255

[单项选择]While attempting to load a base operating system to a machine， an administrator is receiving bootp timeout error messages. What steps should be followed to troubleshoot communications between the NIM master and the client machine？（）
A. View debug logs on NIM master for errors or failures.
B. Boot the client machine to SMS， and view the POST Error log.
C. Boot the client machine to SMS， setup remote IPL， and execute a ping test.
D. Boot the client machine to diagnostics， and ping the client from the NIM master.

[单项选择]When learning a new route, if a LSA received is not found in the topological database, what will an internal OSPF router do?（）
A. The sequence numbers are checked, and if the LSA is val id it is entered into the topology database.
B. The LSA is placed in the topological database and an acknowledgement is sent to the transmitting router.
C. The LSA is dropped and a message is sent to the transmitting router.
D. The LSA is flooded imme diately out of all the OSPF interfaces, except the interface from which the LSA was received.

[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]If uncontrolled, the shortage would ______ a new upsurge in meat prices.
A. set back
B. set forward
C. set off
D. set up

[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]

Task 1
Learners of a new language often find themselves in ambiguous (有歧义的) situations. These situations are characterized by complexity, novelty (新颖), unexpectedness, or a lack of clear-cut (清晰的) solutions. Such ambiguity arises when a person does not understand a sentence, paragraph, or conversation because it contains unfamiliar words or structures. Persons who dislike uncertainty tend to become confused and frustrated, perhaps withdrawing from the situation. They may give up or, in the most extreme cases, even go so far as to avoid further contact with the language. They prefer safe situations in which everything has been practiced, and explained.
However, such behavior is not constructive because language students must learn to cope with uncertainty. Uncertainty is an inescapable part of communication. When someone speaks, he may occasionally feel unsure about his ability to get his message across. Even in the case of native speakers, there may be a lack of c
A. How to Formulate Effective Utterances
B. Ambiguity and Language Performance
C. Maintaining the Listener's Interest
D. The Role of Drill in Language Learning