单项选择题


Questions 11 to 18 are based on the conversation you have just heard.

A．To take some more vegetables.
B．To avoid taking any more food.
C．To pass the woman the meat.
D．To help to prepare the potatoes.
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单项选择题
Why does the author mention the video coverage of the 1989 San Francisco earthquake in Para. 2
A．To explain the relationship between media and consciousness.
B．To interpret media effect on the consciousness and contact.
C．To illustrate the importance of media.
D．To introduce the topic.
单项选择题
A scientist interested in adding to our general knowledge about oxygen would probably call his approach ______.
A．pure science
B．environmental science
C．applied science
D．agricultural science
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