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单选题
Doctor Volkow was astonished because _____ .
A

her research has shed light on her understanding of cell phone

B

she found that cell phone exposure is harmful to human brain

C

she found that using a cell phone for about 50 minutes could influence or change brain activity

D

human brain is not responsive to electromagnetic radiation


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更多 “单选题Doctor Volkow was astonished because _____ .A her research has shed light on her understanding of cell phoneB she found that cell phone exposure is harmful to human brainC she found that using a cell phone for about 50 minutes could influence or change brain activityD human brain is not responsive to electromagnetic radiation” 相关考题
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