单项选择题

If a scientist holds an idea to be true and finds any counter evidence whatever, the idea is either or abandoned.

A．modified
B．ascertained
C．testified
D．violated
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单项选择题
In 2000, retail sales volume in local urban and rural areas rose 57.8 percent and 46.8 percent
A．individually
B．respectively
C．accordingly
D．incidentally
单项选择题
Which condition does the author feel has nearly destroyed our cities
A．Lack of financial planning.
B．The breakup of the family.
C．Natural disasters in many regions.
D．The excessive growth of motors.
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