简述GMP的三大要素以及GMP认证时现场考核的内容。
______modify the meaning and in many cases change the part of speech of the original word.
A. Inflectional affixes
B. Derivational affixes
C. Prefixes
D. Suffixes
Open class of words include the following categories EXCEPT______.
A. verbs
B. adjectives
C. conjunctions
D. nouns