单项选择题

According to the passage, one of the factors that tend to promote social change is ______.

A．mutual interest
B．different points of view
C．more worldly people
D．advanced technology
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单项选择题
It can be inferred from the passage that foraminifers (Line 6, Para 4) are a ______.
A．kind of weather pattern
B．species of tundra plant
C．form of sea life
D．type of miniature penguin
单项选择题
Which of the following is neither plant nor animal
A．Tundra
B．Reef coral
C．Penguin
D．Camel
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