Political______sometimes looks like the performance on the stage.
A．act
B．action
C．actor
D．actress

Why does the author mention the fire extinguisher hose in paragraph 2？
A．To emphasize the unsafe working conditions
B．To show the manager's leadership skills
C．To illustrate the factory's modem technology
D．To explain how the fire was eventually put out

The computer system gives the user quick and easy______to the required information.
A．means
B．approach
C．channel
D．access

The word outgrowth in paragraph 3 is closest in meaning to
A．separation
B．contest
C．contradiction
D．product

Plastics is a kind of__ which is widely used in industry nowadays.
A．mass
B．substance
C．matter
D．material

The author argues that the cause of the disaster was
A．a careless worker with a cigarette
B．the poor telephone system in the factory
C．the slow response by the fire department
D．the lack of fire safety measures