The phrase "brought...to its knees" in the first paragraph most probably denotes ______.
A. forced...to submit to it
B. imposed...on it
C. convinced...that it...
D. associated...with it
查看答案
The text seems to be ______.
A. a scientific paper
B. a book review
C. a graduation dissertation
D. an academic criticism
The idea of Chris DiBona, according to the text, is enriched by ______.
A. T shirt sales
B. open-source
C. programmers' talent
D. others' wisdom
According to the last paragraph, with which of the following statements would the author of the text most probably agree？
Almost-free internet phone calls herald the slow death of traditional telephony.
B. Another data service was delivered entirely over the internet.
C. The traditional telephone business have yet to turn a profit.
D. The dramatic shift in the te[ecoms industry has received little attention.
On the topic of VLSM, which one of the following statements best describes the concept of
A. Deleting unusable addresses through the creation of many subnets.
B. Combining routes to multiple networks into one supernet.
C. Reclaiming unused space by means of changing the subnet size.
D. Calculating the available host addresses in the AS.
E. None of the above
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