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问题:

[单选,材料题] 请在第____处填上正确答案。

A . He says there is emerging evidence that children absorb low—level radiation at a rate more than three times that of adults.
B . By the year 20004 it is estimated that Australia will have 8 million mobile phones:nearly one for every two people.
C . “If mobile phones are found to be dangerous,they should carry a warning label until proper shields can be devised,”he said.
D . Then who finances the research?
E . For example,Telstra,Optus and Vodaphone build their towers where it is geographically suit—able to them and disregard the need of the community.
F . The conclusion is that mobile phones brings more harm than benefit.

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