問題詳情

8. As the experiment involves possible damage to brain cells, all participants are required to signa ________ .
(A) subpoena
(B) reprisal
(C) waiver
(D) citation

參考答案

答案:C
難度:困難0.304054
統計:A(19),B(41),C(45),D(26),E(0)

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