单项选择题

Which statement is true

A．A question is important and therefore it is scientific.
B．A question is unscientific and therefore no scientist believes it.
C．A fact is a descriptive statement upon which all qualified observers agree in believing to be accurate.
D．Scientists sometimes study metaphysics.,
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单项选择题
The author mentions the stump speech in paragraph 2 as an example of
A．an event created by politicians to attract media attention.
B．an interactive discussion between two politicians.
C．a kind of political presentation types of the nineteenth century.
D．a style of speech common to televised political events.
单项选择题
Which of the following statements is supported by the passage
A．Political presentations today are more like advertisements than in the past.
B．Politicians today tend to be more familiar with the views of citizens than in the past.
C．Citizens today are less informed about a politician's character than in the past.
D．Politician speeches today focus on details about issues than in the past.
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