单项选择题

A．identify an analogous situationB．simplify and define ……

The author suggests that a mathematician asked to solve a problem in an ill-defined situation would first attempt to ______.

A．identify an analogous situation
B．simplify and define the situation
C．vary the underlying assumptions of a description of the situation
D．determine what use would be made of the solution provided

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单项选择题According to the author, how is the approach of physicists to solving scientific problems

A．Practical for scientific purposes.
B．Detrimental to scientific progress.
C．Unimportant in most situations.
D．Expedient, but of little long-term value.

单项选择题The author's attitude toward Sophocles's statement is ______.

A．positive
B．negative
C．neutral
D．not mentioned

单项选择题According to this passage, an assumption is ______.

A．something that everyone knows
B．the idea the writer wants to emphasize
C．the reader's knowledge about the topic
D．foundation of the writer's reasoning