单项选择题X 纠错
A．the different objectives of those involved in these respective pursuits
B．the different methods they employ in the collection of data to support their theories
C．the different ways in which they attempt to extend accepted conventional forms
D．the different principles of organization that they utilize in order to create new works
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单项选择题
A．is often quoted in the work of other scientists
B．is careful not to make a value judgement about the use of data
C．is applauded by all distinguished experimentalists
D．generates a novel and well-founded generalization
单项选择题
A．In the similar manner, several modern composers successfully established musical conventions.
B．Similarly, the succeeding generation of composers manipulated accepted musical forms.
C．In contrast to Beethoven, however, even great modern composers like Bela Bartok did not attempt to alter accepted musical conventions,
D．Musicologists are continuing to study the compositional styles of composers in order to determine whether their contributions have been' innovative.
单项选择题
A．Because he sought to become the only composer of his time to challenge accepted musical conventions.
B．Because he adopted a new principle of organization in his work by utilizing innovative strategies.
C．Because he creatively manipulated the accepted rules and forms governing musical composition.
D．Because he synthesized a transition between the older stylistic convention and the newer musical form.
单项选择题
A．international cooperation via the Internet
B．how dangerous thallium can be to humans
C．how one can get help from the Internet
D．the girl’s recovery from thallium poisoning
单项选择题
A．It is optical fibers and lasers that have made the information superhighway possible.
B．People can communicate with each other more quickly now on the Internet.
C．It has taken quite a long time for the Internet to come into existence.
D．If one is seriously ill, he can always get help via the modem communication system.
单项选择题
A．copper wire cables
B．satellite communication
C．optical fibers
D．laser and optical fibers
单项选择题
A．over a century ago
B．in the middle 1960s
C．in the late 1980s
D．in the year 1980
单项选择题
A．It is a 3-ft. metal pod.
B．It has eight 35-ft. metallic wings.
C．It can fly an altitude above 260 miles.
D．When it flies back to Earth, it will fall into pieces.
单项选择题
A．Most scientists are confident that the spacecraft will work well.
B．A more ambitious orbital flight will follow this mission.
C．The author is quite sure that this mission will make impossible technologies seem possible.
D．The key of the engineering of Cosmos I is building wings that can open and pivot.
