【简答题】— Alice looks sad. Did you tell her about her brother's accident? — Sorry, I ________ (not, tell) her just before her final exams.
【判断题】流态化燃烧的特点是高温燃烧;良好的气-固或固-固混合;燃料适应性强;燃烧可控性能好
【单选题】Tom looks so sad that we have to her up.
【单选题】The little girl know the bad news about her mother, for she looks so sad.
【单选题】雷达测量大目标方位时,为消除CRT光点直径对回波的扩大效应,应该________。
【单选题】Mum looks sad today. Let's give her this gift ______.
【简答题】Her sad looks ______the thought passing through her mind.