单项选择题

Radical environmentalists have blamed pollutants and synthetic chemicals in pesticides for the disruption of human hormones.

A．disturbance
B．distraction
C．intersection
D．interpretation
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单项选择题
Identical twin sisters have led British scientists to a breakthrough in leukemia research that promises more effective therapies with fewer harmful side-effects.
A．administers
B．nurtures
C．inspires
D．ensures
单项选择题
An outbreak of swine flu outside of Mexico City was blamed for the deaths of more than a hundred people in April 2009.
A．attached to
B．ascribed to
C．composed of
D．related to
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