问题
选择题
A new study suggests that the energy _____ by a cell phone could activate your brain.[ ]
A. given away
B. giving off
C. given off
D. giving out
答案
答案：C
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A new study suggests that the energy _____ by a cell phone could activate your brain.[ ]
A. given away
B. giving off
C. given off
D. giving out
答案：C
