地价体系中的每一种价格形式都有其独特的不可替代的作用。( )
参考答案：对
视野检查方法包括（）。
A.弧形视野计
B.Humphrey视野计
C.Goldmann视野计
D.平面视野计
E.以上选项都正确
In those days, our ______ concern was to provide people who were stopped by the snow storm with
food and health care. [ ]
A. normal
B. constant
C. permanent
D. primary
