According to this passage, an assumption is ______.

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

单项选择题According to the passage, mathematicians present a danger to scientists because ______.

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

单项选择题The author implies that scientists develop a healthy skepticism because they are aware that ______.

单项选择题According to the passage, scientists are skeptical toward their equations because scientists ______.