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

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热门试题

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

单项选择题

According to the passage, the happy few (Last Line, Para. 3) refers to ______.

A．children who had the privilege of going to school
B．civilized nations that had a lot of schools
C．those countries like Germany, France and England
D．illiterate people in primitive cultures