单项选择题

"antenna" in the third paragraph probably means ______.

A．feeler
B．aerial
C．circuit
D．metal
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单项选择题
The result of another study involved phone-use questionnaires shows that ______.
A．brain cancer patients don't incline to use cell-phones
B．cancer-free participants like to use cell-phones
C．significance of cell-phones
D．cancer-free participants seldom use cell-phones
单项选择题
Muscat's research and a study in New England Journal of Medicine demonstrate that ______.
A．cell phones don't seem to cause brain cancer
B．if you use cell-phone in a long term it is possible to cause brain cancer
C．782 brain cancer patients are caused by using cell-phones
D．the two researches of them are not scientific
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