（）is a semantic process in which the primary meaning stands at the centre and the secondary meanings proceed out of it in every direction like rayes.
A、Radiation
B、Concatenation
C、Derivation
D、Inflection
【正确答案】：A
【题目解析】：Radiation is a semantic process in which the primary meaning stands at the centre and the secondary meanings proceed out of it in every direction like rays. 辐射型以原始意义为中心，从原始意义发展而来的次要意义就像射线那样四处散去。答案为A。
