【多选题】能自行制造大涵道推力高性民用涡扇发动机的国家有 。
【简答题】A. The man should go to see a doctor. B. She'd like to postpone working on the proposal. C. She wants to know why the proposal was late D. It won't take long to finish the proposal.
【简答题】根据培养基性质和用途,可将培养基分为几类?
【判断题】The title of a research proposal should be self-explanatory.
【单选题】设矩阵 有特征值 ,对应的特征向量为 , 为( ).
【判断题】There is a clear format about what the thesis proposal should be like in our university.
【单选题】以下属于列强对中国军事侵略的内容是( )