单项选择题


The percentage of the 9th grade smokers in 2009 was______.

A．23.2
B．25.2
C．31.2
D．33.4
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单项选择题
What is true about the Google online questionnaire
A．It was based on a survey of its employees.
B．It focuses on background questions.
C．It was designed by some mathematicians.
D．It has been filled out by 100, 000 people.
单项选择题
The word allegations (Para. 1)probably means ______.
A．discussions
B．claims
C．announcements
D．opinions
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