单项选择题

Passage Three
Questions 32 to 35 are based on the passage you have just heard.

A．It runs on a monorail.
B．It can move on a monorail suspended from the roof of the tunnel.
C．It is in position in the middle of the tunnel,
D．It can take quick action.
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Animal experiments are needed in research to find new drugs and vaccines, and to find ways of protection from the toxicity of chemicals.
单项选择题
A．A book.B．A remote controller.C．A mini-bar.D．A pencil.
A．A book.
B．A remote controller.
C．A mini-bar.
D．A pencil.
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