单项选择题

In the proposal, the Interior Department______.

A．assessed the cause of the polar bears' decline in the coming decades
B．believed that the loss of ice is attributed to the heat-trapping gases
C．consulted the study on Arctic climate and ice trends
D．predicted manmade heat-trapping gases would cause temperature increase
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单项选择题
The public cannot make informed choices of what food they buy because______.
A．there is no clear labeling on the food
B．they are not well informed of the potential danger of genetically-modified food
C．there is no adequate education on proper diets
D．they are not concerned about genetically-modified ingredients in their food
单项选择题
The third paragraph implies that______.
A．genetic scientists don't go far enough into their research on safety concerns of genetically-modified food
B．at present biotechnology does not grow healthily
C．molecular geneticists cooperate with biotech companies
D．the government should be fully responsible for people's health
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