单项选择题

A．work to explain real, rather than theoretical or simp……

According to the passage, scientists are skeptical toward their equations because scientists ______.

A．work to explain real, rather than theoretical or simplified situations
B．know that well-defined problems are often the most difficult to solve
C．are unable to express their data in terms of multiple variables
D．are unwilling to relax the axioms they have developed

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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According to the passage, mathematicians present a danger to scientists because ______.

A．mathematicians may provide theories that are incompatible with those already developed by scientists
B．mathematicians may define situation in a way that is incomprehensible to scientists
C．mathematicians may convince scientists that theoretical assumptions are facts
D．scientists may come to believe that axiomatic statements are untrue

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The author implies that scientists develop a healthy skepticism because they are aware that ______.

A．mathematicians are better able to solve problems than scientists
B．changes in axiomatic propositions will inevitably undermine scientific arguments
C．well-defined situations are necessary for the design of reliable experiments
D．some factors in most situations must remain unknown

单项选择题Assumptions are important for critical readers because they can help readers to ______.

A．grasp the topic exactly
B．understand the argument passage exactly
C．evaluate the argument passage
D．compare the argument passage with similar argument passages