单项选择题

A．To paint the trash cans.
B．To pick up and sort the trash.
C．To pick up and deliver the trash.
D．To work in the recycling center.
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单项选择题
D
单项选择题
A study was carded out by Britain’’s NCC to________.
A．find out how many claims made by products fail to meet environmental standards
B．inform the consumers of the environmental impact of the products they buy
C．examine claims made by products against ISO standards
D．revise the guidelines set by the International Standards Organization
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