[填空题]Why has academic work become more specialised

[填空题]Cellphone etiquette has become increasingly more important.

[单项选择]Why has Don been missing work
A. He has been job hunting.
B. He has not been feeling well.
C. His daughter has been sick.
D. His specialist changed locations.

[单项选择]Modern medicine has become a more exciting field of study as a result of the two recent changes.
A. 现代医学成为一个更令人振奋的研究领域的结果就是最近两个变化的发生。
B. 现代医学使整个研究领域更为令人振奋。并同时引发了最近的两个变化。
C. 由于最近发生的两个变化，现代医学使整个研究领域都更为令人振奋。
D. 最近的两个变化使现代医学成为一个更令人振奋的研究领域。

[简答题]But in recent years it has become more and more evident that this pursuit has led to a "brave new world" of consumer goods and services.

[单项选择]Why has Africa been more affected by AIDS than any other place in the world
A. Because Aft-lea is the place from where AIDS starts to spread worldwide.
B. Because Africans are too brave and resourceful in trying many things.
C. Because there were not systems in place both to prevent people from contracting it and spreading it.
D. Because Africans arc ready to see some changes in every field.

[填空题]Why is the domain name game become more and more difficult for late comers
A. A．Because later comers is not creative enough to invent special domain
B．Because many common names have already been taken
C．Because the resell market rise extremely quickly.

[填空题]Car-pooling has steadily become more popular in Los Angeles in recent years.

[单项选择]
Why has the meeting been postponed
A. (A) The accountant is ill.
B. (B) The room is not ready.
C. (C) Ms. Schmidt is away at a conference.
D. (D) The speaker is still reading the budget report.

[单项选择]Why has Mary been absent from class
A. She has been ill.
B. She has been in Mexico.
C. Some relatives have been visiting her.

[填空题]

While Americans have become ever more dependent upon electricity in their daily lives, a crucial part of the system that supports their way of life has not kept up. Yes, the country has built more power plants-enough to create a glut of power in most parts of the country.
(41) __________.
California’s disastrous partial energy deregulation and the role played by Enron and other energy marketing companies in its power crisis have impeded changes in the national ability to deliver power.
(42) __________. Moreover, the deficiency also includes inadequate coordination among the regions in managing the flow of electricity. These interregional weaknesses are so far the most plausible explanation for the blackout on Thursday.
(43) __________. The problem is with the system of rules, organization, and oversight that governs the transmission networks. It was set up for a very different era and is now caught in a difficult transition.
The trans