問題詳情

【題組】13. Due to a mistake made in the lab, the sample was accidentally ______, so the experiment was ruined.
(A) contaminated
(B) defended
(C) sympathized
(D) vented

參考答案

答案：B[無官方正解]
難度：困難0.294118
統計：A(6),B(6),C(4),D(0),E(0)