【单选题】—'_____________?' —' He went to the library.' [ ]
D.
Did he go to the library
【单选题】He asked his father ________?
【单选题】已知 25°C 时反应 AgBr(s)→Ag+(aq)+Br-(aq) 的 △ G θ =70.25KJ·mol -1 ,则此反应的平衡常数为 ( )
【判断题】矿体穿越潜水面时会表现季节性的水化学异常
【单选题】—Oh, sorry, what did you say just now? —I asked _______. [ ]
B.
where did he come from
【简答题】Where did he go yesterday? To the ______ .
【简答题】Where did the dueling lose favor?