题目内容
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During the developing of the vaccine, the biggest problem may probably be ______.
A．the combination of bird flu virus with human flu virus.
B．the virus mutates in a short period.
C．the vaccines are ineffective against the virus.
D．the time is pressing for the scientists.
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更多“During the developing of the vaccine, the biggest problem may probably be ______.A．the com”相关的问题
Cost estimating can be best described by which of the following:
A.The process of developing the future trends along with the assessment of probabilities, uncertainties, and inflation that could occur during the project
B.The process of assembling and predicting costs of a project over its life cycle
C.The process of establishing budgets, standards, and a monitoring system by which the investment cost of the project can be measured and managed
D.The process of gathering, accumulating, analyzing, monitoring, reporting, and managing the costs on an on-going basis
The main idea of the passage might be ______.
A．the knowledge-based industries in developing countries
B．the economical competition home and abroad
C．the further considerations of the World Bank
D．the 'knowledge gap' between rich and poor countries
Why cant man prevent the world from being polluted？
A．It"s because there are many developing nations.
B．It"s because people use too many man-made materials.
C．It"s because we have more and more industry.
D．It"s because we are building more vehicles.
● Maintenance activities include（74）.
①making enhancements to software products
②developing a new software product
③correcting problems
④adapting products to new environments
（74）
A．①②
B．①③④
C．②③④
D．①②③④
SEE International will do everything EXCEPT ______.
A．providing appliances to the developing countries
B．training ophthalmologists for the Third World
C．treating both traumatic cataracts and complex cataracts
D．dealing with other diseases besides eyes
The period of Stone Age is during 2000--250BC.()
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