【简答题】应根据什么原则采取防止土体渗透破坏的措施?
【简答题】A.He prefers swimming to walking. B.He likes playing tennis very much. C.He knows walking is better for his health. D.He likes swimming because it is more fun.
【多选题】按照导游讲解的不同阶段,导游词可以划分的类别是(。
【简答题】在将设计好的表单存盘时,系统将生成扩展名分别是SCX和【14】 的两个文件。