在未建立区域似大地水准面模型的区域，实现高程基准的转换主要采用高程拟合法。
参考答案：对
Although we hadn’t seen each other for twenty years, Jack and I _________each other at the first sight at yesterday’s party.
A．affected
B．bothered
C．impressed
D．recognized
简述小说《边城》的主题意蕴。
