单项选择题

What is the main idea of the story

A．The local Africans are peace-loving people.
B．Soda bottles are very precious in some remote areas.
C．A trivial thing may sometimes bring about undesirable consequences.
D．Caution must be taken in introducing new technology.
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单项选择题
How does the author like the common principle held in the pre-election poll
A．It was successful because it took all sections of the population into consideration.
B．It was successful because the publications sent out numerous questionnaires.
C．It was unsuccessful because it didn’’t take the composition of the electorate into consideration.
D．It was unsuccessful because it put emphasis on quality instead of quantity.
单项选择题
What do we know from the passage about Asian immigrants
A．They were looked down upon by European immigrants.
B．They had a hard time seeking equal job opportunities.
C．They worked very hard to earn a decent living.
D．They strongly opposed continued immigration.
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