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Economic Development and Moral Decline......

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单项选择题
The employee health study on PFOA conducted by DuPont revealed______.
A．a certain degree of relation between exposure to PFOA and health
B．possible damage done by PFOA exposure to health
C．close ties between exposure to PFOA and health
D．most of the health parameters are unaffected by PFOA exposure
单项选择题
The research findings______.
A．have severely influenced the company's reputation
B．have made the company suffer a loss of profits
C．have done nothing serious to the company
D．have led the company to improve its products
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