【简答题】1 用下列单词或词组的适当形式填空。(每空 10分, 5 分钟完成) obsession , emphasis, considerable, compliment , endure , perspective, 1. Lately, much __________ has been put on People’s life safety. 2. The cause of the viru...
【单选题】We didn’t expect the plan we had made very carefully for them ______ so coldly.
【简答题】turn down (fold down; refuse to accept) turn in (go to bed; hand in) turn into (change to) turn out (extinguish; prove to be) turn: up, (arrive), 1. I don't see how a bright child can a dunce overnigh...
【单选题】若回归模型中的随机误差项存在序列相关性,则估计模型参数应采用 _______。
【单选题】( )是在浇筑混凝土之前,先张拉预应力筋。