Choose the correct letter, A, B, C or D. Write your answers in boxes 33-35 on your answer sheet. Fabrizio Benedetti’s research

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问题 Choose the correct letter, A, B, C or D.
Write your answers in boxes 33-35 on your answer sheet.
Fabrizio Benedetti’s research on endorphins indicates that

选项 A、they are widely used to regulate pain.
B、they can be produced by willful thoughts.
C、they can be neutralized by introducing naloxone.
D、their pain-relieving effects do not last long enough.

答案C

解析 利用细节信息人名“Fabrizio Benedetti”和“endorphins”定位于原文第六段开头。原文讲到,Fabrizio Benedetti的研究“showed that the placebo effect can be abolished bya drug,naloxone,which blocks the effects of endorphins”,该信息与选项C对应(“blocks”对应“neutralized”),所以正确答案为C。
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