单项选择题

What is the passage mainly about

A．The scientific revolution in the seventeenth century.
B．Reasons that chemistry developed slowly as a science.
C．The practical aspects of chemistry.
D．Difficulties of organizing chemical knowledge systematically.

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单项选择题According to the passage, how did knowledge about chemical processes increase before the seventeenth century

A．Philosophers devised theories about chemical properties.
B．A special symbolic language was developed.
C．Experience led workers to revise their techniques.
D．Experts shared their discoveries with the public.

单项选择题The bold word it refers to which of the following

A．Problem.
B．Material.
C．Difficulty,
D．System.

单项选择题This passage is most probably ______.

A．a review or Milton's Paradise Lost
B．an introduction of what Paradise Lost is about
C．a depiction of the cruelness of the British ruler
D．part of an introduction to English literature

单项选择题According to this passage, Paradise Lost is written for the purpose of ______.

A．praising God for the creation of the world
B．criticizing the cruelness of British ruler
C．changing people's unfavorable impression of Satan
D．expressing his support for the fight of Satan

单项选择题In the poem, Satan is described as ______.

A．an evil person
B．contrary to what is depicted in the Bible
C．selfish and cruel devil
D．a stupid ghost