在软土地段填筑路堤,应先做好(),并按设计要求做好路基处理。
参考答案:排水
-Yu Ting, are you _____ for the long jump? It's time to begin.
-Yes, let's go. [ ]
A. good
B. stand
C. ready
D. doing
试述妄想与超价观念的鉴别要点。